एपीए उद्धरण

Harman, H. (1958). Commercial apprenticeship. Sir Isaac pitman & sons, limited.

शिकागो स्टाइल उद्धरण

Harman, Harold. Commercial Apprenticeship. London: Sir Isaac pitman & sons, limited, 1958.

एमएलए उद्धरण

Harman, Harold. Commercial Apprenticeship. Sir Isaac pitman & sons, limited, 1958.