एपीए उद्धरण

(1999). Trees: Easy plants for more beautiful gardens. Boston: Houghton Mifflin.

शिकागो स्टाइल उद्धरण

Trees: Easy Plants for More Beautiful Gardens. Boston: Houghton Mifflin, 1999.

एमएलए उद्धरण

Trees: Easy Plants for More Beautiful Gardens. Boston: Houghton Mifflin, 1999.