APA (7th ed.) Citation

Gain, W., & Hartman, J. (1990). Strong together: Developing strength with partner. Sport Books.

Chicago Style (17th ed.) Citation

Gain, Walter, and Jurgen Hartman. Strong Together: Developing Strength with Partner. Toronto, Ont: Sport Books, 1990.

MLA (9th ed.) Citation

Gain, Walter, and Jurgen Hartman. Strong Together: Developing Strength with Partner. Sport Books, 1990.