Gaya APA

Trees, C, O, B, M, O, A, D, I. (1989). Biologic Markers of Air-Pollution Stress and Damage in Forests . Washington, D.C.: National Academy of Sciences.

Gaya MLA

Trees, Committee, On, Biologic, Markers, Of, Air-Pollution, Damage, In. "Biologic Markers of Air-Pollution Stress and Damage in Forests". Washington, D.C.: National Academy of Sciences, 1989. e-book.