کتاب های David Hitchcock
Patent Searching Made Easy: How to do Patent Searches Online and in the Library
David Hitchcock, 2017
Flora of the Pacific Northwest : an illustrated manual
Cronquist, Arthur; Giblin, David; Hitchcock, Charles Leo; Janish, Jeanne R.; Legler, Ben; Olmstead, Richard G.; Porcino, Natsuko; Rumely, John H.; Shin, Crystal; Zika, Peter F., 2018
