APA

Khun J. F. J. . S. [., . (2002). Hopkins variations. Philadelphia: Fordham University Press.

Chicago

Khun Joaquin Feeney Joseph S.J [F], . 2002. Hopkins variations. Philadelphia: Fordham University Press.

Harvard

Khun J. F. J. . S. [., . (2002). Hopkins variations. Philadelphia: Fordham University Press.

MLA

Khun Joaquin Feeney Joseph S.J [F], . Hopkins variations. Philadelphia: Fordham University Press. 2002.