Citazione Stile APA (7a Edizione)

Collingwood, E. F. (1966). The theory of cluster sets. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Collingwood, Edward F. The Theory of Cluster Sets. Cambridge: Cambridge University Press, 1966.

Citatione MLA (9a ed.)

Collingwood, Edward F. The Theory of Cluster Sets. Cambridge University Press, 1966.