Citazione Stile APA (7a Edizione)
Lewin, R. (1982). Thread of life: The Smithsonian looks at evolution. Smithsonian Books Distributed by Norton.
Citazione stile Chigago Style (17a edizione)
Lewin, Roger. Thread of Life: The Smithsonian Looks at Evolution. Washington, D.C : New York, N.Y: Smithsonian Books Distributed by Norton, 1982.
Citatione MLA (9a ed.)
Lewin, Roger. Thread of Life: The Smithsonian Looks at Evolution. Smithsonian Books Distributed by Norton, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.