William Joseph Showalter, Gilbert Grosvenor, and others.
NATIONAL GEOGRAPHIC SOCIETY, WASHINGTON, D. C. The book of wild flowers
NATIONAL GEOGRAPHIC SOCIETY, WASHINGTON, D. C. The book of wild flowers, by William Joseph Showalter, Gilbert Grosvenor, and others. © 1Dec24, A814201. R87332, 11Dec51, National Geographic Society (PCW)
National Geographic Society|PCW