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Geology (Shellhorn): Citations

This guide provides resources to support students in physical, environmental, and historical geology courses.

This page contains information on citing sources using Modern Language Association (MLA) and American Psychological Association (APA) styles. For more information on these and other common citation systems, visit Cuesta Library's Citation guide. If you have questions, librarians can help!

Video on MLA Format

In-Depth MLA 8th Ed Guide

For more guidance on MLA Style, 9th edition, see the guide below:

MLA Format 8th Edition
by Carina Love Last Updated Sep 7, 2025 4674 views this year

Writing a Paper Using MLA

Writing a Paper Using MLA
If you are new to using MLA, you may want to read over this document, which covers the basics of MLA formatting.

APA References Video

APA References 7th Edition
This video from the University of Louisville Writing Center explains how to create individual reference entries and how to create the references page. Although it is 10 minutes long, the table of contents in the video description allows you to skip to the sections you need.

APA 7th Edition Style, In Depth

Purdue OWL 7th Edition
Comprehensive guide to the 7th edition of APA, including a citation machine for generating your citations.

Examples of Basic APA Citations

APA 7th Edition Citation Samples
Sample APA 7th edition citations, customized for the needs of Cuesta College students.

Citation Examples from APA
Helpful citation examples, straight from the American Psychological Association (APA) website.
*APA Color Coded Examples
Helpful citation examples that are color-coded to show you what each element is and where it goes in the citation itself. *Easiest one to use!

Ask a Librarian

During the library's open hours, chat with a librarian through Cuesta Connect and the Library Lobby.

For guests, please email AskaLibrarian@cuesta.edu or call us at:

(805) 546-3157 SLO Reference Desk

(805) 592-9410 NCC Reference Desk