APA Citation

Siegfried, A. Theories of personality. H.D. Tjeenk Willink & Zoon.

Chicago Style Citation

Siegfried, Andre. Theories of Personality. H.D. Tjeenk Willink & Zoon.

MLA Citation

Siegfried, Andre. Theories of Personality. H.D. Tjeenk Willink & Zoon.

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