APA

Olson R. J., Nagle J. P., . (1965). Adaptation Tests of Trees and Shrubs for the Intermountain Area of the Pacific Northwest. : .

Chicago

Olson Robert J, Nagle John P, . 1965. Adaptation Tests of Trees and Shrubs for the Intermountain Area of the Pacific Northwest. : .

Harvard

Olson R. J., Nagle J. P., . (1965). Adaptation Tests of Trees and Shrubs for the Intermountain Area of the Pacific Northwest. : .

MLA

Olson Robert J, Nagle John P, . Adaptation Tests of Trees and Shrubs for the Intermountain Area of the Pacific Northwest. : . 1965.