APA (7th ed.) Citation

(1970). Ella Bergmann, Robert Michel: Collagen.

Chicago Style (17th ed.) Citation

Ella Bergmann, Robert Michel: Collagen. Paderborn, 1970.

MLA (9th ed.) Citation

Ella Bergmann, Robert Michel: Collagen. 1970.

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