APA

Craig S. P., Yuan L., Kuntz D. A., McKerrow J. H. & Wang C. C. (19910425). High level expression in Escherichia coli of soluble, enzymatically active schistosomal hypoxanthine/guanine phosphoribosyltransferase and trypanosomal ornithine decarboxylase. : Proceedings of the National Academy of Sciences of the United States of America.

Chicago

Craig S P, Yuan L, Kuntz D A, McKerrow J H and Wang C C. 19910425. High level expression in Escherichia coli of soluble, enzymatically active schistosomal hypoxanthine/guanine phosphoribosyltransferase and trypanosomal ornithine decarboxylase. : Proceedings of the National Academy of Sciences of the United States of America.

Harvard

Craig S. P., Yuan L., Kuntz D. A., McKerrow J. H. and Wang C. C. (19910425). High level expression in Escherichia coli of soluble, enzymatically active schistosomal hypoxanthine/guanine phosphoribosyltransferase and trypanosomal ornithine decarboxylase. : Proceedings of the National Academy of Sciences of the United States of America.

MLA

Craig S P, Yuan L, Kuntz D A, McKerrow J H and Wang C C. High level expression in Escherichia coli of soluble, enzymatically active schistosomal hypoxanthine/guanine phosphoribosyltransferase and trypanosomal ornithine decarboxylase. : Proceedings of the National Academy of Sciences of the United States of America. 19910425.