एपीए उद्धरण

(1999). Classroom teaching skills (6th ed.). Boston: Houghton Mifflin.

शिकागो स्टाइल उद्धरण

Classroom Teaching Skills. 6th ed. Boston: Houghton Mifflin, 1999.

एमएलए उद्धरण

Classroom Teaching Skills. 6th ed. Boston: Houghton Mifflin, 1999.