APA-viite (7. p.)

Platt, N., & Drummond, M. J. (1960). Our world through the ages: Key to workbook. Prentice-Hall, Inc..

Chicago-viite (17. p.)

Platt, Nathaniel, ja Muriel Jean Drummond. Our World Through the Ages: Key to Workbook. Englewood Cliffs, N.J.: Prentice-Hall, Inc., 1960.

MLA-viite (8. p.)

Platt, Nathaniel, ja Muriel Jean Drummond. Our World Through the Ages: Key to Workbook. Prentice-Hall, Inc., 1960.