Cita APA

Watt, S. B., & Wood, W. E. (1981). Hand dug wells and their construction.

Citación estilo Chicago

Watt, Simon B., y W. E. Wood. Hand Dug Wells and Their Construction. 1981.

Cita MLA

Watt, Simon B., y W. E. Wood. Hand Dug Wells and Their Construction. 1981.