APA (7th ed.) Citation

Gray, J. (1994). Men are from Mars, women are from Venus together forever: Relationship skills for lasting love. Vermilion.

Chicago Style (17th ed.) Citation

Gray, John. Men Are from Mars, Women Are from Venus Together Forever: Relationship Skills for Lasting Love. London: Vermilion, 1994.

MLA (8th ed.) Citation

Gray, John. Men Are from Mars, Women Are from Venus Together Forever: Relationship Skills for Lasting Love. Vermilion, 1994.