Problems of melliferous flora and pollination : proceedings of and papers delivered at the International Symposium held at Turin from October 2 through 6, 1972 - International Apicultural Symposium on Melliferous Flora and Pollination (1972 : Turin, Italy) (Turin, Italia : Apimondia, Melliferous Flora and Pollination Standing Commission, 1972)
Keywords: PLANTAS MELIFERAS -- CONGRESOS; APICULTURA -- CONGRESOS; FECUNDACION DE LAS PLANTAS