APA (7th ed.) Citation

Spreen, O. (1978). Geistige Behinderung. Springer.

Chicago Style (17th ed.) Citation

Spreen, Otfried. Geistige Behinderung. Berlin [u.a.]: Springer, 1978.

MLA (9th ed.) Citation

Spreen, Otfried. Geistige Behinderung. Springer, 1978.

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