Potter's new cyclopaedia of botanical drugs and preparations /
by R. C. Wren.
APA Citation
Wren, R. C. (Richard Cranfield)., Wren, R. W. (Richard W.). (1975). Potter's new cyclopaedia of botanical drugs and preparations. New ed. / Holsworthy: Health Science Press.
MLA Citation
Wren, R. C. (Richard Cranfield), 1864-1931, and R. W. (Richard W.) Wren. Potter's New Cyclopaedia of Botanical Drugs And Preparations. New ed. / Holsworthy: Health Science Press, 1975.
Warning: These citations may not always be complete (especially for serials).