APA

Castlewitz D. M., . (1982). Visicala. Berkley: McGraw hill.

Chicago

Castlewitz David M, . 1982. Visicala. Berkley: McGraw hill.

Harvard

Castlewitz D. M., . (1982). Visicala. Berkley: McGraw hill.

MLA

Castlewitz David M, . Visicala. Berkley: McGraw hill. 1982.