Dyfyniad APA

C. Nelson Arthur, Randolph John, & M. Schilling Joseph. (2009). Environmental Regulations and Housing Costs. USA: C. Nelson and John Randolph.

Dyfyniad Arddull Chicago

C. Nelson Arthur, Randolph John, và M. Schilling Joseph. Environmental Regulations and Housing Costs. USA: C. Nelson and John Randolph, 2009.

Dyfyniad MLA

C. Nelson Arthur, Randolph John, và M. Schilling Joseph. Environmental Regulations and Housing Costs. USA: C. Nelson and John Randolph, 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.