Cita APA

Martin, L., & Martin, S. (1967). Europe: The grand tour! New York: McGraw-Hill.

Citación estilo Chicago

Martin, Lawrence, y Sylvia Martin. Europe: The Grand Tour! New York: McGraw-Hill, 1967.

Cita MLA

Martin, Lawrence, y Sylvia Martin. Europe: The Grand Tour! New York: McGraw-Hill, 1967.