APA

Pollack R. L., Hunt G. & Rosen M. (1986). The pain-free tryptophan diet. New York, NY: Warner Books.

Chicago

Pollack Robert L, Hunt Gerry and Rosen Marcia. 1986. The pain-free tryptophan diet. New York, NY: Warner Books.

Harvard

Pollack R. L., Hunt G. and Rosen M. (1986). The pain-free tryptophan diet. New York, NY: Warner Books.

MLA

Pollack Robert L, Hunt Gerry and Rosen Marcia. The pain-free tryptophan diet. New York, NY: Warner Books. 1986.