Mousses de l'Oubangui Potier de la Varde, R. (Robert), 1878-1961 creator text book [Caen René Viguier 1928] 1928
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FRE Reprint: Archives de Botanique, Mémoires, tome 1 (1927) Includes index. Stafleu (2nd) | 8207. Africa, Central QK546.A3P6 1928a https://www.biodiversitylibrary.org/bibliography/57878 4763716 10.5962/bhl.title.57878