APA Style
P. R. Ackroyd, dkk. (1976).
Numbers .
Cambrige:
Cambridge University Press.
Chicago Style
P. R. Ackroyd, dkk.
Numbers.
Cambrige:
Cambridge University Press,
1976.
Text.
MLA Style
P. R. Ackroyd, dkk.
Numbers.
Cambrige:
Cambridge University Press,
1976.
Text.
Turabian Style
P. R. Ackroyd, dkk.
Numbers.
Cambrige:
Cambridge University Press,
1976.
Print.