by Paul Carpenter Standley

1912

by Paul P. Goudkoff

1926

by Paul Carpenter Standley

1924

by West Virginia Geological and Economic Survey, Paul Holland Price

1929

by Albert Spear Hitchcock, Paul Carpenter Standley

1919

by Paul E. Vandor

1919

by Paul Leroy Vogt

1908 · Philadelphia : Published for the University

by Paul Hamilton Hayne

1882

by Paul Leake

1912

by Paul Fleury Mottelay

1922

by I. Paul Taylor

1920

by Fogg Art Museum, Paul Joseph Sachs

1915