Knight, R. O. (1967). The plant in relation to water (2d ed.). Heinemann Educational Books.
Citace podle Chicago (17th ed.)Knight, R. O. The Plant in Relation to Water. 2d ed. London: Heinemann Educational Books, 1967.
Citace podle MLA (8th ed.)Knight, R. O. The Plant in Relation to Water. 2d ed. Heinemann Educational Books, 1967.
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