Cita APA (7a ed.)

MacInnes, H. (1969). The Salzburg connection (1st issued, 3th imp.). Collins.

Cita Chicago Style (17a ed.)

MacInnes, Helen. The Salzburg Connection. 1st issued, 3th imp. London [etc.]: Collins, 1969.

Cita MLA (9a ed.)

MacInnes, Helen. The Salzburg Connection. 1st issued, 3th imp. Collins, 1969.