Παραπομπή σε μορφή APA (7η εκδ.)

Spyker, J. (1848). A collection of geographical, moral, religious, Biblical, political and other chapters: In the form questions and answers ... Brady and Wilson.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spyker, Joel. A Collection of Geographical, Moral, Religious, Biblical, Political and Other Chapters: In the Form Questions and Answers ... Brookville, PA.: Brady and Wilson, 1848.

Παραπομπή σε μορφή MLA (8th εκδ.)

Spyker, Joel. A Collection of Geographical, Moral, Religious, Biblical, Political and Other Chapters: In the Form Questions and Answers ... Brady and Wilson, 1848.