Drost, P. N. (1948). Contracts and peace treaties: The general clause on contracts in the peace treaties of Paris 1947 and in the peace treaty of Versailles 1919 : a comparison in outline with some suggestion for the future peace treaties. M. Nijhoff.
Chicago Style (17th ed.) CitationDrost, Pieter Nicolaas. Contracts and Peace Treaties: The General Clause on Contracts in the Peace Treaties of Paris 1947 and in the Peace Treaty of Versailles 1919 : A Comparison in Outline with Some Suggestion for the Future Peace Treaties. The Hague: M. Nijhoff, 1948.
MLA (9th ed.) CitationDrost, Pieter Nicolaas. Contracts and Peace Treaties: The General Clause on Contracts in the Peace Treaties of Paris 1947 and in the Peace Treaty of Versailles 1919 : A Comparison in Outline with Some Suggestion for the Future Peace Treaties. M. Nijhoff, 1948.