Dyfyniad APA

Smith, W. H. (1970). Tree pathology: A short introduction. Academic Press.

Dyfyniad Arddull Chicago

Smith, W H. Tree Pathology: A Short Introduction. New York: Academic Press, 1970.

Dyfyniad MLA

Smith, W H. Tree Pathology: A Short Introduction. Academic Press, 1970.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.