Citazione APA

Staples, R. R., & Hudson, W. K. (1938). An ecological survey of the mountain area of Basutoland. [Comptroller of Stores].

Stile di citazione Chicago

Staples, R. R., e W. K. Hudson. An Ecological Survey of the Mountain Area of Basutoland. [Maseru]: [Comptroller of Stores], 1938.

Citazione MLA

Staples, R. R., e W. K. Hudson. An Ecological Survey of the Mountain Area of Basutoland. [Comptroller of Stores], 1938.