Gaya APA

Butterfield, H. (1954). Christianity in European history, the Riddell memorial lectures 1951, (ed impr) Penerbitan asli 1952 . London: Collins.

Gaya MLA

Butterfield, H.. "Christianity in European history, the Riddell memorial lectures 1951, (ed impr) Penerbitan asli 1952 ". London: Collins, 1954. Buku.