Παραπομπή APA

ROCKWELL, F. (1946). THE BOOK OF BULBS. THE MACMILLIAN COMPANY.

Παραπομπή Chicago Style

ROCKWELL, F.F. THE BOOK OF BULBS. NEW YORK: THE MACMILLIAN COMPANY, 1946.

Παραπομπή MLA

ROCKWELL, F.F. THE BOOK OF BULBS. THE MACMILLIAN COMPANY, 1946.