Citazione Stile APA (7a Edizione)

Gillespie, S., & Hayden, T. (1985). A Study of the Needs of the New York Public Library.

Citazione stile Chigago Style (17a edizione)

Gillespie, Susan, e Trudy Hayden. A Study of the Needs of the New York Public Library. 1985.

Citatione MLA (9a ed.)

Gillespie, Susan, e Trudy Hayden. A Study of the Needs of the New York Public Library. 1985.