APA (7th ed.) Citation

Romanowski, O. (1973). [Study 21 (a)].

Chicago Style (17th ed.) Citation

Romanowski, Otto. [Study 21 (a)]. 1973.

MLA (9th ed.) Citation

Romanowski, Otto. [Study 21 (a)]. 1973.

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