APA

cooke d., avon d. & cooke f. (1994). keeping & breeding cockatiels acomplete guide. london: blandford.

Chicago

cooke ducie, avon dennis and cooke freddie. 1994. keeping & breeding cockatiels acomplete guide. london: blandford.

Harvard

cooke d., avon d. and cooke f. (1994). keeping & breeding cockatiels acomplete guide. london: blandford.

MLA

cooke ducie, avon dennis and cooke freddie. keeping & breeding cockatiels acomplete guide. london: blandford. 1994.