APA

ALDERTON D., . (2002). THE COMPLETE BOOK OF BIRDS. new york: Hermes house.

Chicago

ALDERTON DAVID, . 2002. THE COMPLETE BOOK OF BIRDS. new york: Hermes house.

Harvard

ALDERTON D., . (2002). THE COMPLETE BOOK OF BIRDS. new york: Hermes house.

MLA

ALDERTON DAVID, . THE COMPLETE BOOK OF BIRDS. new york: Hermes house. 2002.