APA (7th ed.) Citation

(1967). Pieter Geyl. 15 december 1887-31 december 1966. [IVIO.

Chicago Style (17th ed.) Citation

Pieter Geyl. 15 December 1887-31 December 1966. [IVIO, 1967.

MLA (8th ed.) Citation

Pieter Geyl. 15 December 1887-31 December 1966. [IVIO, 1967.

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