एपीए उद्धरण

MORRIS,RICHARD B & IRWIN,GRAHAM W. (1967). HARPER ENCYCLOPEDIA OF THE MODERN WORLD. HARPER & ROW.

शिकागो स्टाइल उद्धरण

MORRIS,RICHARD B & IRWIN,GRAHAM W. HARPER ENCYCLOPEDIA OF THE MODERN WORLD. NEWYORK: HARPER & ROW, 1967.

एमएलए उद्धरण

MORRIS,RICHARD B & IRWIN,GRAHAM W. HARPER ENCYCLOPEDIA OF THE MODERN WORLD. HARPER & ROW, 1967.