...pollinating lucerne. Proc. NZ Grassl. Assoc., 36, 123-128. DOTCHKOVA B. — Communication personnelle. FREE JB, 1970. — Insect pollination of crops. Academic Press London and New York. GILBERT I., 1979. — Données non publiées. GOLDMAN A., BAR-COHEN R., 1975. — The efficiency of...
Free, JB 1970. Insect Pollination of Crops. Academic Press, London and New York. 