APA

Porter K., Foster J., . (1986). The mental athlete: inner training for peak performance. Dubuque, Iowa: W.C. Brown Publishers.

Chicago

Porter Kay, Foster Judy, . 1986. The mental athlete: inner training for peak performance. Dubuque, Iowa: W.C. Brown Publishers.

Harvard

Porter K., Foster J., . (1986). The mental athlete: inner training for peak performance. Dubuque, Iowa: W.C. Brown Publishers.

MLA

Porter Kay, Foster Judy, . The mental athlete: inner training for peak performance. Dubuque, Iowa: W.C. Brown Publishers. 1986.