APA (7th ed.) Citation

(1949). V. 20, № 5, 7-9. 1949.

Chicago Style (17th ed.) Citation

V. 20, № 5, 7-9. 1949, 1949.

MLA (9th ed.) Citation

V. 20, № 5, 7-9. 1949, 1949.

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