APA (7th ed.) Citation

Lips, H. M., & Colwill, N. L. (1978). The psychology of sex differences. A spectrum book.

Chicago Style (17th ed.) Citation

Lips, Hilary M., and Nina L. Colwill. "The Psychology of Sex Differences." A Spectrum Book 1978.

MLA (8th ed.) Citation

Lips, Hilary M., and Nina L. Colwill. "The Psychology of Sex Differences." A Spectrum Book, 1978.