Frear, D. E. (1958). Pesticide handbook (1st edition.). State College.
Cita Chicago Style (17a ed.)Frear, Donal E.H. Pesticide Handbook. 1st edition. Pennsylvania: State College, 1958.
Cita MLA (8a ed.)Frear, Donal E.H. Pesticide Handbook. 1st edition. State College, 1958.
Precaución: Estas citas no son 100% exactas.