Straaten, P. V. (2006). Farming with rocks and minerals: Challenges and opportunities. Academia Brasileira de Ciências.
Citazione stile Chigago Style (17a edizione)Straaten, Peter Van. Farming with Rocks and Minerals: Challenges and Opportunities. Academia Brasileira de Ciências, 2006.
Citatione MLA (9a ed.)Straaten, Peter Van. Farming with Rocks and Minerals: Challenges and Opportunities. Academia Brasileira de Ciências, 2006.
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