Quennell, P. (1965). Four portraits: Studies of the eighteenth century. Collins.
Chicago Style aipamenaQuennell, Peter. Four Portraits: Studies of the Eighteenth Century. London: Collins, 1965.
MLA aipamenaQuennell, Peter. Four Portraits: Studies of the Eighteenth Century. Collins, 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.