| GMD | Text |
| Language | Eng |
| Classification | 270 R762 |
| Publisher | Philadelphia, Westminster Press, c1967-[70] |
| Edition | 2nd ed. with rev. bibliography. |
| Subject | Christian union -- History.Church history -- Modern period, 1500-Ecumenical movement -- History. |
| Description | 2 v. ; 23 cm. |
| ISBN | 9780281023448 |