APA (7th ed.) Citation

De Groot, G. J. (2001). The First World War / Gerard J. De Groot. Palgrave.

Chicago Style (17th ed.) Citation

De Groot, Gerard J. The First World War / Gerard J. De Groot. Basingstoke: Palgrave, 2001.

MLA (9th ed.) Citation

De Groot, Gerard J. The First World War / Gerard J. De Groot. Palgrave, 2001.

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