APA (7th ed.) Citation

Porter, J. J. (1981). Dutch neutrality in two World Wars. Univ. Microfilms International.

Chicago Style (17th ed.) Citation

Porter, James John. Dutch Neutrality in Two World Wars. Ann Arbor/Mi. ; London: Univ. Microfilms International, 1981.

MLA (9th ed.) Citation

Porter, James John. Dutch Neutrality in Two World Wars. Univ. Microfilms International, 1981.

Warning: These citations may not always be 100% accurate.