Filtering by: Date 1974 Remove constraint Date: 1974 Degree Ph.D. Remove constraint Degree: Ph.D. Keyword actinomycetales Remove constraint Keyword: actinomycetales Keyword chemistry Remove constraint Keyword: chemistry Rights http://rightsstatements.org/vocab/InC/1.0/ Remove constraint Rights: http://rightsstatements.org/vocab/InC/1.0/