APA (7th ed.) Citation

Sigrell, B. (1972). Problemkinder in der schule. Beltz.

Chicago Style (17th ed.) Citation

Sigrell, Bo. Problemkinder in Der Schule. Weinheim: Beltz, 1972.

MLA (8th ed.) Citation

Sigrell, Bo. Problemkinder in Der Schule. Beltz, 1972.

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