Wilkes, R. E., Brooke, J. D., & Price, R. G. (1970). Commerce: An Australian introduction. McGraw-Hill.

Wilkes, R. E., J. D. Brooke, and Ray G. Price. Commerce: An Australian Introduction. Sydney: McGraw-Hill, 1970.

Wilkes, R. E., et al. Commerce: An Australian Introduction. McGraw-Hill, 1970.