APA (7th ed.) Citation

Wallace, E. (1933). Geheime Mächte. Goldmann.

Chicago Style (17th ed.) Citation

Wallace, Edgar. Geheime Mächte. Leipzig: Goldmann, 1933.

MLA (9th ed.) Citation

Wallace, Edgar. Geheime Mächte. Goldmann, 1933.

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