APA
Bergman J Ed, FECHEM conference on heterocycles in bio-organic chemistry (6th : 1990 : Sweden) & Vanderplas H C Ed. (1991). Proceeding on hetrocycles in bio-organic chemistry. Cambridge: Royal Society of Chemistry.
Chicago
Bergman J Ed, FECHEM conference on heterocycles in bio-organic chemistry (6th : 1990 : Sweden) and Vanderplas H C Ed. 1991. Proceeding on hetrocycles in bio-organic chemistry. Cambridge: Royal Society of Chemistry.
Harvard
Bergman J Ed, FECHEM conference on heterocycles in bio-organic chemistry (6th : 1990 : Sweden) and Vanderplas H C Ed. (1991). Proceeding on hetrocycles in bio-organic chemistry. Cambridge: Royal Society of Chemistry.
MLA
Bergman J Ed, FECHEM conference on heterocycles in bio-organic chemistry (6th : 1990 : Sweden) and Vanderplas H C Ed. Proceeding on hetrocycles in bio-organic chemistry. Cambridge: Royal Society of Chemistry. 1991.