Porter, John Guy.
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2240602A
- pdbooks.info ID: 166413
John Guy. Porter Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Comets and meteor streams | 1952 | Author | |  | |  | | 
| |