McGregor, G., & McGregor Graeme. (1970). Land: Use or abuse. Soil Conservation Authority.

McGregor, Graeme, and McGregor Graeme. Land: Use or Abuse. Kew, Vic.: Soil Conservation Authority, 1970.

McGregor, Graeme, and McGregor Graeme. Land: Use or Abuse. Soil Conservation Authority, 1970.