APA (7th ed.) Citation

(1963). 13 whodunits (1. Aufl.). Langenscheidt.

Chicago Style (17th ed.) Citation

13 Whodunits. 1. Aufl. Berlin-Schöneberg: Langenscheidt, 1963.

MLA (9th ed.) Citation

13 Whodunits. 1. Aufl. Langenscheidt, 1963.

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