| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Boiler Operator's Guide | 978-0-07-060511-4 (0-07-060511-4) | 1981 |
| Boiler Operator's Guide: Construction, Operation, Inspection, and Maintenance of Steam Boilers, with 310 Typical Steam Engineer's Examination Questions and Answers | 978-0-07-060510-7 (0-07-060510-6) | 1940 |
H. M. · H.M. Spring · H.S. · H. Spring · Harry M. Jr. Spring · Harry Mortimer Spring · M S.