Παραπομπή APA

Nicholas, H. (1982). Map librarianship. Clive Bingley.

Παραπομπή Chicago Style

Nicholas, Harold. Map Librarianship. London: Clive Bingley, 1982.

Παραπομπή MLA

Nicholas, Harold. Map Librarianship. Clive Bingley, 1982.