APA (7th ed.) Citation

Ellendorff, F., & Koch, E. (1985). Early pregnancy factors: Proceedings of an international workshop, April 17-19, 1985, Mariensee, West Germany. Perinatology Press.

Chicago Style (17th ed.) Citation

Ellendorff, F., and Egon Koch. Early Pregnancy Factors: Proceedings of an International Workshop, April 17-19, 1985, Mariensee, West Germany. Ithaca, N.Y.: Perinatology Press, 1985.

MLA (9th ed.) Citation

Ellendorff, F., and Egon Koch. Early Pregnancy Factors: Proceedings of an International Workshop, April 17-19, 1985, Mariensee, West Germany. Perinatology Press, 1985.