एपीए उद्धरण

Subrahmanian., N. Historical research methodology. [s.n].

शिकागो स्टाइल उद्धरण

Subrahmanian., N. Historical Research Methodology. [s.l]: [s.n].

एमएलए उद्धरण

Subrahmanian., N. Historical Research Methodology. [s.n].