To create accurate APA references for your classification of cellphone users, textbooks, and classmates, you would generally follow specific formats depending on the type of source. Below are examples for each category you’ve mentioned:
Textbook
If you have a specific textbook that discusses cellphone users, the format would look like this:
Format: Author Last Name, First Initial(s). (Year). Title of the book: Subtitle if applicable. Publisher.
Example: Smith, J. A. (2020). Understanding cellphone users: A sociological perspective. Academic Press.
Classmates (Personal Communication)
For personal communication like interviews, discussions, or any other informal communication you had with classmates, the APA format is:
Format: First Initial(s). Last Name of Classmate (personal communication, Month Day, Year)
Example: A. B. Johnson (personal communication, September 15, 2023).
Note: Personal communications are not included in the reference list but can be cited in-text.
General Reference Structure for APA
Here’s a reminder of how to format a general reference list entry in APA style. Make sure to include a hanging indent for each entry:
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Book: Author, A. A. (Year of Publication). Title of work: Capital letter also for subtitle. Publisher.
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Article: Author, A. A. (Year of Publication). Title of article. Title of Journal, volume number(issue number), page range. DOI or URL (if available)
If you want more specific examples or have particular sources in mind, please let me know!