Παραπομπή σε μορφή APA (7η εκδ.)

(1999). Comparative effects of precommercial thinning, urea fertilizer, and red alder in a site II, coast Douglas-fir plantation / Richard E. Miller, Edmund L. Obermeyer, and Harry W. Anderson.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Comparative Effects of Precommercial Thinning, Urea Fertilizer, and Red Alder in a Site II, Coast Douglas-fir Plantation / Richard E. Miller, Edmund L. Obermeyer, and Harry W. Anderson. 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Comparative Effects of Precommercial Thinning, Urea Fertilizer, and Red Alder in a Site II, Coast Douglas-fir Plantation / Richard E. Miller, Edmund L. Obermeyer, and Harry W. Anderson. 1999.