STUDY GUIDE TO ACCOMPANY NATION OF NATIONS VOLUME I:TO 1877 SECOND EDITION
JAMES WEST DAVIDSON WILLIAM E.GIENAPP1994 年出版256 页ISBN：0070156360
THE AMERICAN PROMISE A HISTORY OF THE UNITED STATES VOLUME I:1877
JAMES L.ROARK MICHAEL P.JOHNSON PATRICIA CLINE COHEN SARAH STAGE ALAN LAWSON SUSAN M.HARTMANN1998 年出版643 页ISBN：0312111967
DICTIONARY OF SCIENTIFIC BIOGRAPHY VOLUME 18
FREDERIC L.HOLMES1990 年出版1075 页ISBN：
THE NEW ENCYCLOPAEDIA BRITANNICA IN 30 VOLMUES MACROPAEDIA VOLUME 18
1984 年出版1106 页ISBN：0852294131
THE CONDUCT OF INQUIRY:METHODOLOGY FOR BEHAVIORAL SCIENCE
ABRAHAM KAPLAN1964 年出版428 页ISBN：
ENVIRONMENTAL SCIENCE:A STUDY OF INTERRELATIONSHIPS EIGHTH EDITION
ENGER SMITH2002 年出版486 页ISBN：
