Collings, Gilbeart H.
Commercial fertilizers, their sources and use - 5th ed. - New York McGraw-Hill 1955 - 617 p. ill. 24 cm.
Includes bibliographies
Fertilizers
668.62 / COL/1955
Commercial fertilizers, their sources and use - 5th ed. - New York McGraw-Hill 1955 - 617 p. ill. 24 cm.
Includes bibliographies
Fertilizers
668.62 / COL/1955