Murck Barbara W., & Skinner Brian J. (1999). Geology Today Understanding Our Planet. American: John Wiley & Sons.
Dyfyniad Arddull ChicagoMurck Barbara W., và Skinner Brian J. Geology Today Understanding Our Planet. American: John Wiley & Sons, 1999.
Dyfyniad MLAMurck Barbara W., và Skinner Brian J. Geology Today Understanding Our Planet. American: John Wiley & Sons, 1999.
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