Moran, J. M., Morgan, M. D., & Wiersma, J. H. (1973). An introduction to environmental sciences. Little, Brown.
Lua i Stíl Chicago (17ú heag.)Moran, Joseph M., Michael D. Morgan, agus James H. Wiersma. An Introduction to Environmental Sciences. Boston: Little, Brown, 1973.
Lua MLA (9ú heag.)Moran, Joseph M., et al. An Introduction to Environmental Sciences. Little, Brown, 1973.
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