Catalog of the Type Specimens of Invertebrate Fossils: Part I - Paleozoic Cephalopoda ; Katalog Spesimen Tipe Fosil Invertebrata: Bagian I - Cephalopoda Paleozoikum
Report of the Secretary of the Smithsonian Institution and Financial Report of the Executive Committee of the Board of Regents for the Year Ended June 30, 1938 ; Laporan Sekretaris Smithsonian Institution dan Laporan Keuangan Komite Eksekutif Dewan Regent untuk Tahun yang Berakhir 30 Juni 1938
United States Government Printing Office
Report of the Secretary of the Smithsonian Institution for the Year Ending June 30, 1930; Laporan Sekretaris Smithsonian Institution untuk Tahun yang Berakhir 30 Juni 1930