Gaya APA
Sayre, April Pulley. (2002).
Secrets of Sound: Studying the Calls and Songs of Whales Elephants and Birds .
Boston:
Houghton Mifflin Company.
Gaya Chicago
Sayre, April Pulley.
Secrets of Sound: Studying the Calls and Songs of Whales Elephants and Birds.
Boston:
Houghton Mifflin Company,
2002.
.
Gaya MLA
Sayre, April Pulley.
Secrets of Sound: Studying the Calls and Songs of Whales Elephants and Birds.
Boston:
Houghton Mifflin Company,
2002.
.
Gaya Turabian
Sayre, April Pulley.
Secrets of Sound: Studying the Calls and Songs of Whales Elephants and Birds.
Boston:
Houghton Mifflin Company,
2002.
.