APA (7th ed.) Citation

Morrison, R., & Morrison, M. (1990). Australia: The four billion year journey of a continent. Weldon.

Chicago Style (17th ed.) Citation

Morrison, Reg, and Maggie Morrison. Australia: The Four Billion Year Journey of a Continent. Sydney: Weldon, 1990.

MLA (9th ed.) Citation

Morrison, Reg, and Maggie Morrison. Australia: The Four Billion Year Journey of a Continent. Weldon, 1990.