Newspaper article, "Australian Financial Review" 6 February 1980, "US allows phosphate sale to Soviet Union" Unit ID: 43
Newspaper Article, The Australian, 31 January 1980 concerning an address by N. G. Jenner, Chairman of The Australian Shipping Commission Unit ID: 35
"Phosphate Raw Materials and Fertilizers: Part II - A Case History of Marginal Raw Materials, John Hoare, BPC Unit ID: 57
"Phosphate Rock: World Production, Trade and Resources", A.J.G. Notholt, Mineral Resources Division, Institute of Geological Sciences, London Unit ID: 32