APA (7th ed.) Citation

Christie, A. (1960). Srta. Marple y 13 problemas.

Chicago Style (17th ed.) Citation

Christie, Agatha. Srta. Marple Y 13 Problemas. 1960.

MLA (9th ed.) Citation

Christie, Agatha. Srta. Marple Y 13 Problemas. 1960.

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