Citazione Stile APA (7a Edizione)

Osmena, S. (1941). Our forests: Speech delivered ... at the thirtieth anniversary celebration of the School of Forestry, University of the Philippines, Makiling National Park, Los Banos, Laguna, November 30, 1940. Bureau of Print.

Citazione stile Chigago Style (17a edizione)

Osmena, Sergio. Our Forests: Speech Delivered ... at the Thirtieth Anniversary Celebration of the School of Forestry, University of the Philippines, Makiling National Park, Los Banos, Laguna, November 30, 1940. Manila: Bureau of Print, 1941.

Citatione MLA (9a ed.)

Osmena, Sergio. Our Forests: Speech Delivered ... at the Thirtieth Anniversary Celebration of the School of Forestry, University of the Philippines, Makiling National Park, Los Banos, Laguna, November 30, 1940. Bureau of Print, 1941.