Columbia subject headings:
Harvard subject headings:
Book industries and trade--Texas--History.
Booksellers and bookselling--Texas--Biography.
Gammel, Hans Peter Mareus Neilsen, 1854-1931.
Publishers and publishing--Texas--Biography.
Texas--Bibliography.
Princeton subject headings:
Book industries and trade--Texas--History.
Booksellers and bookselling--Texas--Biography.
Gammel, Hans Peter Mareus Neilsen, 1854-1931.
Publishers and publishing--Texas--Biography.
Texas--Bibliography.