| Principia Ethica
G. E. Moore | |
| Principle and Practice: The Orphan Family
Harriet Martineau | |
| Principle in Art, Etc.
Coventry Patmore | |
| Principles and practice of agricultural analysis. Volume 2 (of 3), Fertilizers
Harvey Washington Wiley | |
| Principles and practice of agricultural analysis. Volume 3 (of 3), Agricultural products
Harvey Washington Wiley | |
| Principles and Practice of Fur Dressing and Fur Dyeing
William E. Austin | |
| Principles of Decorative Design / Fourth Edition
Christopher Dresser | |
| Principles of Freedom
Terence J. MacSwiney | |
| Principles of Geology / or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology
Sir Charles Lyell | |
| Principles of Home Decoration, With Practical Examples
Candace Wheeler |
