Lua APA (7ú heag.)
Huffman, W. E., & Evenson, R. E. (2006). Science for agriculture: A long-term perspective (2nd ed.). Blackwell Pub..
Lua i Stíl Chicago (17ú heag.)
Huffman, Wallace E., agus Robert E. Evenson. Science for Agriculture: A Long-term Perspective. 2nd ed. Ames, Iowa: Blackwell Pub., 2006.
Lua MLA (9ú heag.)
Huffman, Wallace E., agus Robert E. Evenson. Science for Agriculture: A Long-term Perspective. 2nd ed. Blackwell Pub., 2006.
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