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المؤلفون: Newton, Alfred, 1829-1907
المساهمون: Gadow, Hans, 1855-1928, Lydekker, Richard, 1849-1915, Roy, Charles S., Shufeldt, Robert W. (Robert Wilson), 1850-1934
المؤلفون: Newton, Alfred, 1829-1907
المساهمون: Gadow, Hans, 1855-1928, Lydekker, Richard, 1849-1915, Roy, Charles S., Shufeldt, Robert W. (Robert Wilson), 1850-1934