H.N. Werkman : Monographics.

MLA

Purvis, Alston W. H.n. Werkman : Monographics. New Haven: Yale University Press, 2004.

APA

Purvis, A. W. (2004). H.N. Werkman : Monographics. New Haven: Yale University Press.

Chicago

Purvis, Alston W. H.N. Werkman: Monographics. New Haven: Yale University Press, 2004.