Cita APA (7th ed.)
Paley, V. G. (1990). The boy who would be a helicopter. Harvard University Press.
Cita Chicago (17th ed.)
Paley, Vivian Gussin. The Boy Who Would Be a Helicopter. Cambridge, MA: Harvard University Press, 1990.
Cita MLA (9th ed.)
Paley, Vivian Gussin. The Boy Who Would Be a Helicopter. Harvard University Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.