The New Encyclopaedia Britannica
Print Book, English, ©1977
15th ed
Encyclopaedia Britannica, Inc., Chicago, ©1977
30 volumes : illustrations ; 29 cm
9780852293157, 0852293151
2707221
[1] Propaedia: outline of knowledge, guide to the Britannica
[2] Micropaedia: ready reference and index. 10 v
[3] Macropaedia: knowledge in depth. 19 v
The Micropaedia and Macropaedia are numbered v. 1-10 and v. 1-19, respectively