What is an in text citationCiting Information: APA . For every in-text citation there should be a full citation in the reference list and vice versa. . For all in-text citations except for those following block quotations (see below), the reference is placed . . Books Selections from Books Periodicals Online Sources. . . . . Jump to in-text citations . . A citation is a line of text that uniquely identifies a source. The American Psychological Association (APA) guidelines require that you use ... more