National Geographic Society, WQED (Television station : Pittsburg, Pa.), Hughes, C., Hughes, D., Kane, D. B., & Skinner, T. (1983). Rain forest. The Society.
Citazione stile Chigago Style (17a edizione)National Geographic Society, Pa.) WQED (Television station : Pittsburg, Carol Hughes, David Hughes, Dennis B. Kane, e Thomas Skinner. Rain Forest. Washington, D.C: The Society, 1983.
Citatione MLA (9a ed.)National Geographic Society, et al. Rain Forest. The Society, 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.