اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
"March 1970."
Appendix A. Climatological data -- Appendix B. Surface water measurement -- Appendix C. Ground water measurement
"This volume was prepared ... by Charles L. McKelvey"--P. viii
"William R. Gianelli, Director, Department of Water Resources."