APA

Ehler S. Z., . (1957). Twenty centuries of church and state: a survey of their relations in past and present. Westminster, Md: Newman Press.

Chicago

Ehler Sidney Z, . 1957. Twenty centuries of church and state: a survey of their relations in past and present. Westminster, Md: Newman Press.

Harvard

Ehler S. Z., . (1957). Twenty centuries of church and state: a survey of their relations in past and present. Westminster, Md: Newman Press.

MLA

Ehler Sidney Z, . Twenty centuries of church and state: a survey of their relations in past and present. Westminster, Md: Newman Press. 1957.