1. Weeds. An Illustrated Botanical Guide to the Weeds of Australia;Auld,1987
2. Commercialisation of microbial biological control agents;Bowers,1982
3. Biology of Australian Weeds: 15. Xanthium occidentale Bertol. complex and Xanthium spinosum L.;Hocking;J. Aust. Inst. Agric. Sci.,1986
4. The World's Worst Weeds;Holm,1977
5. Distribution and importance of Noogoora and Bathurst burrs in eastern Australia;Martin;Aust. Weeds,1982