Handbook of flower polination : based upon Herman Mullers work the fertilizations of flowers - Knuth, Paul; Davis, J. R. Ainsworth; Asutosh Collection (National Library, India) (Oxford : Clarendon Press, 1906)
Vol. 1 Introduction and literature. - v.2 Observation on flower pollination made in Europe and the artic regions on species belonging to the natural orders
Keywords: Fertilization of plants; Plants -- Variation