Cita APA (7th ed.)
Sarton, M. (1984). At seventy: A journal. W.W. Norton.
Cita Chicago (17th ed.)
Sarton, May. At Seventy: A Journal. New York: W.W. Norton, 1984.
Cita MLA (9th ed.)
Sarton, May. At Seventy: A Journal. W.W. Norton, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.