(1981). The Last Great Ice sheets. John Wiley.
Chicago Style (17. basım) AtıfThe Last Great Ice Sheets. New York: John Wiley, 1981.
MLA (9th ed.) AtıfThe Last Great Ice Sheets. John Wiley, 1981.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
(1981). The Last Great Ice sheets. John Wiley.
Chicago Style (17. basım) AtıfThe Last Great Ice Sheets. New York: John Wiley, 1981.
MLA (9th ed.) AtıfThe Last Great Ice Sheets. John Wiley, 1981.