| Year: | 1976 |
| Author: | Robert K. G. TEMPLE |
| Title: | THE SIRIUS MYSTERY |
| Language: | English |
- Was Earth Visited by Intelligent Beings From a Planet in the System of the Star Sirius?
 | ||
| Year: | 1975 | |
| Publisher: | St. Martin's, New York | |
| Description: | 290 | |
 |
 | ||
| Year: | 1976 | |
| Publisher: | Sidgwick & Jackson, London | |
| Description: | 290 | |
|
 | ||
| Year: | 1977 | |
| Publisher: | Futura, London | |
| Description: | 304 | |
|
| Cover | Language | Title | Year | |
|---|---|---|---|---|
| German | DAS SIRIUS RÄTSEL (Translated by Nikolaus KAISER) |
1977 | ||
 | Italian | IL MISTERO DI SIRIO (Translated by Donatella CERUTTI) |
1978 | |
| Spanish/Catalan | EL MISTERIO DE SIRIO | 1982 | ||
| English | THE SIRIUS MYSTERY (revised edition) | (Title change) | 1998 | |
 | Italian | IL MISTERO DI SIRIO (Translated by Daniele BELLARINI) |
1998 |
| Robert K. G. Temple, 1945 age 79 years (Robert Kyle Grenville Temple) |
| Cover | Title | Year |
|---|---|---|
| THE SIRIUS MYSTERY (revised edition) |
1998 | |
 |
THE CRYSTAL SUN |
2000 |
