Cita APA

Doubtfire, D., & Horowicz, K. (1969). Fun with stamps for the younger collector. Hutchinsoin.

Citación estilo Chicago

Doubtfire, Dianne, y Kay Horowicz. Fun with Stamps for the Younger Collector. London: Hutchinsoin, 1969.

Cita MLA

Doubtfire, Dianne, y Kay Horowicz. Fun with Stamps for the Younger Collector. Hutchinsoin, 1969.