एपीए उद्धरण

BALLARD,Ernesta Drinker. (1962). THE ART OF TRAINING PLANTS. HARPER & BROTHERS.

शिकागो स्टाइल उद्धरण

BALLARD,Ernesta Drinker. THE ART OF TRAINING PLANTS. NEW YORK: HARPER & BROTHERS, 1962.

एमएलए उद्धरण

BALLARD,Ernesta Drinker. THE ART OF TRAINING PLANTS. HARPER & BROTHERS, 1962.