Tucker, W. G. (1891). Some educational problems: The introductory address to the eleventh lecture course at the Albany College of Pharmacy, delivered October 5, 1891. [s.n.].
Chicago-referens (17:e uppl.)Tucker, Willis G. Some Educational Problems: The Introductory Address to the Eleventh Lecture Course at the Albany College of Pharmacy, Delivered October 5, 1891. Albany, N.Y.: [s.n.], 1891.
MLA-referens (8:e uppl.)Tucker, Willis G. Some Educational Problems: The Introductory Address to the Eleventh Lecture Course at the Albany College of Pharmacy, Delivered October 5, 1891. [s.n.], 1891.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.