APA (7th ed.) Citation

Unger, I., & Unger, D. (1978). From 1865. Little, Brown.

Chicago Style (17th ed.) Citation

Unger, Irwin, and Debi Unger. From 1865. Boston [u.a.]: Little, Brown, 1978.

MLA (9th ed.) Citation

Unger, Irwin, and Debi Unger. From 1865. Little, Brown, 1978.