Citação norma APA

Werth, J. T. (1980). Sand and gravel resources: Protection, regulation, and reclamation. American Planning Association, Planning Advisory Service.

Citação norma Chicago

Werth, Joel T. Sand and Gravel Resources: Protection, Regulation, and Reclamation. Chicago: American Planning Association, Planning Advisory Service, 1980.

Citação norma MLA

Werth, Joel T. Sand and Gravel Resources: Protection, Regulation, and Reclamation. American Planning Association, Planning Advisory Service, 1980.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.