THE RIVER BASIN AN INTRODUCTION TO THE STUDY OF HYDROLOGY
1978 年出版120 页ISBN:0521219000
ENGLISH GRAMMAR:A LINGUISTIC STUDY OF ITS CLASSES AND STRUCTURES
2222 年出版244 页ISBN:0435107909
THE PAEOLE PROCESS A STUDY OF THE NATIONAL PAROLE BOARD
1976 年出版157 页ISBN:0660005549