APA

Reader's Digest Association Inc, . (1993). Wildlife symphony. Londres: Reader's Digest Association Inc.

Chicago

Reader's Digest Association Inc, . 1993. Wildlife symphony. Londres: Reader's Digest Association Inc.

Harvard

Reader's Digest Association Inc, . (1993). Wildlife symphony. Londres: Reader's Digest Association Inc.

MLA

Reader's Digest Association Inc, . Wildlife symphony. Londres: Reader's Digest Association Inc. 1993.