APA (7th ed.) Citation

Doubtfire, D., & Horowicz, K. (1959). Iniciación a la filatelia.

Chicago Style (17th ed.) Citation

Doubtfire, Dianne, and Kay Horowicz. Iniciación a La Filatelia. 1959.

MLA (9th ed.) Citation

Doubtfire, Dianne, and Kay Horowicz. Iniciación a La Filatelia. 1959.

Warning: These citations may not always be 100% accurate.