The New Encyclopaedia Britannica : in 30 volumes : macropædia : knowledge in depth. Volume 13, Newman - Peisistratus.

Eitemau Tebyg

• The New Encyclopaedia Britannica : in 30 volumes : macropædia : knowledge in depth. Volume 1, Aalto - Arithmetic.
  Cyhoeddwyd: (1980)
• The New Encyclopaedia Britannica : in 30 volumes : macropædia : knowledge in depth. Volume 2, Arizona - Bolivar.
  Cyhoeddwyd: (1980)
• The New Encyclopaedia Britannica : in 30 volumes : macropædia : knowledge in depth. Volume 4, Ceylon - Congreve.
  Cyhoeddwyd: (1980)
• The New Encyclopaedia Britannica : in 30 volumes : macropædia : knowledge in depth. Volume 14, Peking - Probability.
  Cyhoeddwyd: (1980)
• The New Encyclopaedia Britannica : in 30 volumes : macropædia : knowledge in depth. Volume 15, Proboscidea - Rubber.
  Cyhoeddwyd: (1980)