Williams, P. (1991). Mahāyāna Buddhism (Reprint.). London New York.
Chicago Style aipamenaWilliams, Paul. Mahāyāna Buddhism. Reprint. London New York, 1991.
MLA aipamenaWilliams, Paul. Mahāyāna Buddhism. Reprint. London New York, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.