Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Ashton, N. (1987). What does the turtle say? -.

Chicago Citation Edition Citation

Ashton, N.G. What Does the Turtle Say? -. 1987.

MLA Citation Edition Citation

Ashton, N.G. What Does the Turtle Say? -. 1987.