APA

alderton، david, . (2008). Encyclopedia of a quarium & pond fish. london: DK.

Chicago

alderton، david, . 2008. Encyclopedia of a quarium & pond fish. london: DK.

Harvard

alderton، david, . (2008). Encyclopedia of a quarium & pond fish. london: DK.

MLA

alderton، david, . Encyclopedia of a quarium & pond fish. london: DK. 2008.