APA (7th ed.) Citation

Eckstein, R. A. (1979). Bio-Kosmetik.

Chicago Style (17th ed.) Citation

Eckstein, Richard A. Bio-Kosmetik. 1979.

MLA (9th ed.) Citation

Eckstein, Richard A. Bio-Kosmetik. 1979.

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