APA (7th ed.) Citation

Adler, A. (1927). Understanding human nature / by A. Adler. Greenberg.

Chicago Style (17th ed.) Citation

Adler, Alfred. Understanding Human Nature / by A. Adler. Greenberg, 1927.

MLA (9th ed.) Citation

Adler, Alfred. Understanding Human Nature / by A. Adler. Greenberg, 1927.

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