APA (7th ed.) Citation

(1989). Sint, Marjanne. . Wiersma, Jan Marinus.

Chicago Style (17th ed.) Citation

Sint, Marjanne. . Wiersma, Jan Marinus. 1989.

MLA (8th ed.) Citation

Sint, Marjanne. . Wiersma, Jan Marinus. 1989.

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