MLA

Holt, Laurence E, et al. Flexibility: A Concise Guide. Humana Press, 2008.

APA

Holt, L. E, Cooper, G., Herrera, J. E, Holt, J., Pelham, T. W, & Pelham, T. E. (2008). Flexibility: A Concise Guide. Humana Press.

Chicago

Holt, Laurence E., Grant Cooper, Joseph E Herrera, Jason Holt, Thomas W Pelham, and Thomas E Pelham. Flexibility: A Concise Guide. : Humana Press, 2008.