Robert Heller ... [et al.]Webster Division, McGraw-Hillc1979
全国の図書館
- 著者標目Heller, Robert L. (Robert Leo)
Robert L. Heller ... [et al.] ; program review, William HarmerWebster Division, McGraw-Hill Bookc1973
全国の図書館
- 著者標目Heller, Robert L. (Robert Leo) Harmer, William
Robert L. Heller, editor ; prepared under the guidance of the American Geological Institute, National Academy of Sciences-National Research CouncilHolt, Rinehart and Winstonc1962
全国の図書館
- 著者標目...te. Conference Heller, Robert L. (Robert Leo) National Academy of Sciences ...