एपीए उद्धरण

Smith, P. I. S. (1970). Industrial intelligence and espionage. Business Books.

शिकागो स्टाइल उद्धरण

Smith, Paul I. Slee. Industrial Intelligence and Espionage. London: Business Books, 1970.

एमएलए उद्धरण

Smith, Paul I. Slee. Industrial Intelligence and Espionage. Business Books, 1970.