Dyfyniad APA

Shepard, H. H. (1951). The chemistry and action of insecticides. McGraw-Hill.

Dyfyniad Arddull Chicago

Shepard, Harold H. The Chemistry and Action of Insecticides. Nueva York: McGraw-Hill, 1951.

Dyfyniad MLA

Shepard, Harold H. The Chemistry and Action of Insecticides. McGraw-Hill, 1951.

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