B J Johnson. (1979). Safety in pesticide application. Wisconsin, USA: Crop Science Society of America.
Chicago Stili AlıntıB J Johnson. Safety in Pesticide Application. Wisconsin, USA: Crop Science Society of America, 1979.
MLA AlıntıB J Johnson. Safety in Pesticide Application. Wisconsin, USA: Crop Science Society of America, 1979.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..