ANALYZING SOCIAL SETTINGS:A GUIDE TO QUALITATIVE OBSERVATION AND ANALYSIS SECOND EDITION
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The ROV manual : a user guide to observation-class remotely operated vehicles
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A GUIDE TO OBSERVATION AND PARTICIPATION IN THE CLASSROOM AN INTRODUCTION TO EDUCATION THIRD EDITION
ARTHEA J.S.REED VERNA E.BERGEMANN MARY W.OLSON1998 年出版202 页ISBN:0697298825