Pierce, F. N. (1967). The genitalia of the group Geometridae of the Lepidoptera of the British Islands: An account of the morphology of the male clasping organs and the corresponding organs of the female (Nachdr. d. Ausg. 1914.). Classey.
Chicago-Zitierstil (17. Ausg.)Pierce, Frank N. The Genitalia of the Group Geometridae of the Lepidoptera of the British Islands: An Account of the Morphology of the Male Clasping Organs and the Corresponding Organs of the Female. Nachdr. d. Ausg. 1914. Hampton/Middlesex: Classey, 1967.
MLA-Zitierstil (9. Ausg.)Pierce, Frank N. The Genitalia of the Group Geometridae of the Lepidoptera of the British Islands: An Account of the Morphology of the Male Clasping Organs and the Corresponding Organs of the Female. Nachdr. d. Ausg. 1914. Classey, 1967.