Reeve, R. N. (2002). Introduction to Environmental Analysis. John Wiley & Sons,LTD.
Dyfyniad Arddull ChicagoReeve, Roger N. Introduction to Environmental Analysis. England: John Wiley & Sons,LTD, 2002.
Dyfyniad MLAReeve, Roger N. Introduction to Environmental Analysis. John Wiley & Sons,LTD, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.