APA 7
APA 7th Edition is the most commonly used referencing style here at the University of Portsmouth. Below you will find general guidance on how to reference and cite using APA 7th Edition, as well as examples for the specific sources you are likely to use in your assignments.
Your department or lecturer may prefer you to reference sources differently from the guidance given here. Always follow the requirements of your department or lecturer.
External visitors are welcome to use this guide, but note that your institution's requirements may differ from those suggested here.
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Reference
Author, Initials. or Name of Organisation. (Year of publication). Title [Map; scale]. URL
United States Geological Survey. (2021). Louisville West Quadrangle, Illinois - Clay County [Map; 1:24,000]. https://prd-tnm.s3.amazonaws.com/StagedProducts/Maps/USTopo/PDF/MS/MS_Starkville_20201231_TM_geo.pdf
In-text citation
The course of the Little Wabash River... (United States Geological Survey, 2021)