APA (7e ed.) Bronvermelding

Castle, H. N., Mead, G. H., & Mead, H. C. (2012). The collected letters of Henry Northrup Castle. Ohio University Press ; Samuel N. and Mary Castle Foundation.

Chicago (17e ed.) Bronvermelding

Castle, Henry Northrup, George Herbert Mead, en Helen Castle Mead. The Collected Letters of Henry Northrup Castle. Athens, Ohio : Honolulu, Hawai'i: Ohio University Press ; Samuel N. and Mary Castle Foundation, 2012.

MLA (9e ed.) Bronvermelding

Castle, Henry Northrup, et al. The Collected Letters of Henry Northrup Castle. Ohio University Press ; Samuel N. and Mary Castle Foundation, 2012.