Botany & Horticulture in 1970

Versuche Über Pflanzenhybriden by Mendel, Gregor

Residue Reviews: Residues of Pesticides and Other Foreign Chemicals in Foods and Feeds by Hull, Herbert M.

Trees, Shrubs, and Vines: A Pictorial Guide to the Ornamental Woody Plants of the Northeastern United States Exclusive of Conifers by Viertel, Arthur T.

Gesellschaftsmorphologie: Strukturforschung by

Pacific Northwest Ferns and Their Allies by Taylor, Thomas M. C.