APA (7th ed.) Citation

Haas, J. d. (1959). Oud neg.nr. 59421-59503. 'NVV congres, Utrecht'.

Chicago Style (17th ed.) Citation

Haas, Joh. de. Oud Neg.nr. 59421-59503. 'NVV Congres, Utrecht'. 1959.

MLA (8th ed.) Citation

Haas, Joh. de. Oud Neg.nr. 59421-59503. 'NVV Congres, Utrecht'. 1959.

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