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A revision of the spider mite family Tetranychidae - Pritchard, A. Earl (Arthur Earl), 1915 -1965 (Pacific Coast Entomological Society, 1955)

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Revue horticole (Librairie agricole de la maison rustique, 1843)

Revue horticole (Librairie agricole de la maison rustique, 1845)

Revue horticole (Librairie agricole de la maison rustique, 1848)

Revue horticole (Librairie agricole de la maison rustique, 1852)

Revue horticole (Librairie agricole de la maison rustique, 1853)

Revue horticole (Librairie agricole de la maison rustique, 1860)

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Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1939)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1940)

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Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1945)

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Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1974)

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Rhynchophora or weevils of north eastern America - Blatchley, W. S. (Willis Stanley), 1859 -1940 (The Nature Publishing Company, 1916)

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Die rohstoffe des pflanzenreiches; versuch einer technischen rohstofflehre des pflanzenreiches - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1903)

Die Rohstoffe des Pflanzenreiches versuch einer technischen Rohstofflehre des Pflanzenreiches - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1873)

Die Rohstoffe des Pflanzenreichs : versuch einer Technischen Rohstofflehre des Pflanzenreiches - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1914)

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Seasonal changes in heat content and ether extractive content of chamise - Philpot, Charles Walter, 1939 - (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969)

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