Gaya APA

Young, R, A., L, 1, J, 2, G, R. (1990). Introduction To Forest Science (ed. ke-2). Newyork: John Wiley & Sons.

Gaya MLA

Young, Raymond, A., L, 1., J., 2., Giese,, Ronald. "Introduction To Forest Science". ed. ke-2 Newyork: John Wiley & Sons, 1990. Text.