توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Clark, Etta, و 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.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

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