APA (7th ed.) Citation

(1921). Romein-Verschoor, Annie. . Romein, Jan Erik.

Chicago Style (17th ed.) Citation

Romein-Verschoor, Annie. . Romein, Jan Erik. 1921.

MLA (8th ed.) Citation

Romein-Verschoor, Annie. . Romein, Jan Erik. 1921.

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