APA-Zitierstil (7. Ausg.)

Clifton, R. T. F. (1990). Geraniaceae group: Geranium family species check list (4. ed.). Geraniaceae Group.

Chicago-Zitierstil (17. Ausg.)

Clifton, Richard Timothy Fred. Geraniaceae Group: Geranium Family Species Check List. 4. ed. Dover: Geraniaceae Group, 1990.

MLA-Zitierstil (9. Ausg.)

Clifton, Richard Timothy Fred. Geraniaceae Group: Geranium Family Species Check List. 4. ed. Geraniaceae Group, 1990.