APA Style calls for three kinds of information to be included in in-text citations:
All of these pieces of information must match the corresponding reference list entry exactly!
Research has shown that "the demographic of the fly is a key determining factor in the robustness of its flavour" (Frog, 1998, p.33).
As stated by Frog (1998) in his seminal article, "the demographic of the fly is a key determining factor in the robustness of its flavour"(p. 33).
In this example, the author's name is mentioned in the text itself; therefore, the name need not be repeated in the bracketed citation.
Each in-text citation must be associated with an item in a comprehensive list of references at the end of your paper. Pay attention to your formatting when constructing your reference list; APA is particular about which components to capitalize, italicize, and which punctuation to use in a given situation.