APA

Maiden J., . (1921). [A] Critical revision of the genus eucalyptus. New South Wales: [The] Government of the State.

Chicago

Maiden J.H, . 1921. [A] Critical revision of the genus eucalyptus. New South Wales: [The] Government of the State.

Harvard

Maiden J., . (1921). [A] Critical revision of the genus eucalyptus. New South Wales: [The] Government of the State.

MLA

Maiden J.H, . [A] Critical revision of the genus eucalyptus. New South Wales: [The] Government of the State. 1921.