APA (7th ed.) Citation

Halkes, S. J. (1964). Enige stereoisomere steroiden.

Chicago Style (17th ed.) Citation

Halkes, Sebastianus Johannes. Enige Stereoisomere Steroiden. 1964.

MLA (9th ed.) Citation

Halkes, Sebastianus Johannes. Enige Stereoisomere Steroiden. 1964.

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