CRAVENS, R. H. (1977). PESTS AND DISEASES. Virginia, Time-life Books.
Cita Chicago Style (17a ed.)CRAVENS, RICHARD H. PESTS AND DISEASES. Virginia, Time-life Books, 1977.
Cita MLA (8a ed.)CRAVENS, RICHARD H. PESTS AND DISEASES. Virginia, Time-life Books, 1977.
Precaución: Estas citas no son 100% exactas.