The new Encyclopaedia Britannica/
- 15th ed.
- Chicago: Encyclopaedia Britannica, Inc., c 1990
- 970p.: ill.; 30 cm.
Volume 21 (Macropaedia, Knowledge in depth)
Encyclopaedia Britannica
0852295111
63007079
Encyclopaedia
030 / ENC 15th ed. 1990
Volume 21 (Macropaedia, Knowledge in depth)
Encyclopaedia Britannica
0852295111
63007079
Encyclopaedia
030 / ENC 15th ed. 1990