Williams, J. G., & Williams, J. G. (2006). The Pure Spring. New Delhi: Manohar Publ. & Distributors.
Chicago Style aipamenaWilliams, Joanna Gottfried, and Joanna Gottfried Williams. The Pure Spring. New Delhi: Manohar Publ. & Distributors, 2006.
MLA aipamenaWilliams, Joanna Gottfried, and Joanna Gottfried Williams. The Pure Spring. New Delhi: Manohar Publ. & Distributors, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.