K A Longman. (1987). Tropical forest and its environment. London: Longman.
Dyfyniad Arddull ChicagoK A Longman. Tropical Forest and Its Environment. London: Longman, 1987.
Dyfyniad MLAK A Longman. Tropical Forest and Its Environment. London: Longman, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.