एपीए उद्धरण

Penny Ur. (1984). Teaching listening comprehension. Cambridge, New York: Cambridge Univ.

शिकागो स्टाइल उद्धरण

Penny Ur. Teaching Listening Comprehension. Cambridge, New York: Cambridge Univ, 1984.

एमएलए उद्धरण

Penny Ur. Teaching Listening Comprehension. Cambridge, New York: Cambridge Univ, 1984.