Difficult problems in adult cardiac surgery
(Arthur James); Roberts;Arthur J.1985 年出版426 页ISBN：0815173040
PSYCHOLOGY AND THE PROBLEMS OF TODAY
MICHAEL WERTHEIMER AND LEON RAPPOPORT1978 年出版439 页ISBN：0673078906
LECTURE NOTES IN MATHEMATICS 1528: COMPLEMENTARITY PROBLEMS
1992 年出版297 页ISBN：3540562516;0387562516
NATURAL RESOURCE ECONOMICS:NOTES AND PROBLEMS
JON M.CONRAD COLIN W.CLARK1987 年出版231 页ISBN：
PHILOSOPHICAL PROBLEMS AND ARGUMENTS:AN INTRODUCTION
JAMES W.CORNMAN AND KEITH LEHRER1968 年出版462 页ISBN：
THE WORLD FOOD PROBLEM SECOND EDITION
PHILLIPS FOSTER AND HOWARD D.LEATHERS1999 年出版411 页ISBN：
The Numerical solution of nonlinear problems
Baker;Christopher T. H.;Phillips;Chris1981 年出版369 页ISBN：0198533543
