APA (7th ed.) Citation

(1997). Genetic engineering and biotechnology related firms worldwide directory. Sittig and Noyes.

Chicago Style (17th ed.) Citation

Genetic Engineering and Biotechnology Related Firms Worldwide Directory. Kingston, N.J., U.S.A.: Sittig and Noyes, 1997.

MLA (9th ed.) Citation

Genetic Engineering and Biotechnology Related Firms Worldwide Directory. Sittig and Noyes, 1997.