Цитирование APA (7-е изд.)

Peterson's Guides, Inc, & University Continuing Education Association. (1997). Peterson's distance learning programs (2nd ed.). Peterson's.

Цитирование в стиле Чикаго (17-е изд.)

Peterson's Guides, Inc, и University Continuing Education Association. Peterson's Distance Learning Programs. 2nd ed. Princeton, N.J: Peterson's, 1997.

Цитирование MLA (9-е изд.)

Peterson's Guides, Inc, и University Continuing Education Association. Peterson's Distance Learning Programs. 2nd ed. Peterson's, 1997.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.