| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Methods in Microbiology: Techniques in Microbial Ecology | 978-O-12-521522-O (O-12-521522-3) | 1991 |
R. Greger · R Gregoire · R. Gregor · R. Gregory · R. Grisar · R. Grisard · R Grosgurin · Ray Gregory · Roy Gregory