Cita APA (7a ed.)

MacInnes, H. (1969). The salzburg connection (6.). First Fawcett Crest.

Cita Chicago Style (17a ed.)

MacInnes, Helen. The Salzburg Connection. 6. New York, Estados Unidos: First Fawcett Crest, 1969.

Cita MLA (9a ed.)

MacInnes, Helen. The Salzburg Connection. 6. First Fawcett Crest, 1969.