Gill, N. A. V. (1968). Agricultural botany Ed.2.1968 (2nd ed.).
Chicago Edition CitationGill, Nt And Vear. Agricultural Botany Ed.2.1968. 2nd ed. 1968.
Deismireacht MLAGill, Nt And Vear. Agricultural Botany Ed.2.1968. 2nd ed. 1968.
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