Butchvarov, P. (1966). Resemblance and Identity: An Examination of the Problem of Universals. Indiana University Press.

Butchvarov, Panayot. Resemblance and Identity: An Examination of the Problem of Universals. Bloomington: Indiana University Press, 1966.

Butchvarov, Panayot. Resemblance and Identity: An Examination of the Problem of Universals. Indiana University Press, 1966.