Gibbons, F. R., & Downes, R. G. (1964). A study of the land in south-western Victoria. Soil Conservation Authority.

Gibbons, Frank R., and R. G. Downes. A Study of the Land in South-western Victoria. [Melbourne]: Soil Conservation Authority, 1964.

Gibbons, Frank R., and R. G. Downes. A Study of the Land in South-western Victoria. Soil Conservation Authority, 1964.