APA (7th ed.) Citation

Sittig, M., & Noyes, R. (1983). Genetic engineering and biotechnology firms worldwide directory. Sittig and Noyes.

Chicago Style (17th ed.) Citation

Sittig, Marshall, and Robert Noyes. Genetic Engineering and Biotechnology Firms Worldwide Directory. Kingston, N.J.: Sittig and Noyes, 1983.

MLA (9th ed.) Citation

Sittig, Marshall, and Robert Noyes. Genetic Engineering and Biotechnology Firms Worldwide Directory. Sittig and Noyes, 1983.