APA (7e ed.) Bronvermelding

Clark, E., & Selzer, R. (1986). Growing old is not for sissies: Portraits of senior athletes / Etta Clark. With an introduction by Richard Selzer. Pomegranate.

Chicago (17e ed.) Bronvermelding

Clark, Etta, en Richard Selzer. Growing Old Is Not for Sissies: Portraits of Senior Athletes / Etta Clark. With an Introduction by Richard Selzer. Corte Madera, Calif.: Pomegranate, 1986.

MLA (8e ed.) Bronvermelding

Clark, Etta, en Richard Selzer. Growing Old Is Not for Sissies: Portraits of Senior Athletes / Etta Clark. With an Introduction by Richard Selzer. Pomegranate, 1986.