APA

Παππά Φ., . (1996). "Portraits of Historic American Philhellenes. Washington: s.n.

Chicago

Παππά Φρειδερίκη, . 1996. "Portraits of Historic American Philhellenes. Washington: s.n.

Harvard

Παππά Φ., . (1996). "Portraits of Historic American Philhellenes. Washington: s.n.

MLA

Παππά Φρειδερίκη, . "Portraits of Historic American Philhellenes. Washington: s.n. 1996.