"West Virginia University studies : the pteridophytes of West Virginia."; "Margolin, Abraham Stanley, 1905-", "Brooks, Maurice, 1900-1993."; "Pteridophyta.", "Botany--West Virginia."; "Brooks, Maurice, 1900-1993.", "Margolin, Abraham Stanley, 1905-"; "1938"; "

Serial issue. Issued as: West Virginia University. Bulletin, ser.39:no.2 (1938:Aug.). \"Contribution no. 3 from the Herbarium of West Virginia University.

"; ""; "P11409"; "pec"; "Pteridophyta.", "Botany--West Virginia."; "14256"; .