Citazione Stile APA (7a Edizione)

Powell, J. H. (2014). The NASA Library and Researchers at Goddard: A Visitor's Perspective.

Citazione stile Chigago Style (17a edizione)

Powell, Jill H. The NASA Library and Researchers at Goddard: A Visitor's Perspective. 2014.

Citatione MLA (9a ed.)

Powell, Jill H. The NASA Library and Researchers at Goddard: A Visitor's Perspective. 2014.