Plessis, J. S. d. (1957). Die Vryburgers van 1657: Húlle was die eintlike Volksplanters. Koers, 24(6), 240-245. doi:10.4102/koers.v24i6.1842
Citazione stile Chigago Style (17a edizione)Plessis, J. S. du. "Die Vryburgers Van 1657: Húlle Was Die Eintlike Volksplanters." Koers 24, no. 6 (1957): 240-245, https://doi.org/10.4102/koers.v24i6.1842.
Citatione MLA (9a ed.)Plessis, J. S. du. "Die Vryburgers Van 1657: Húlle Was Die Eintlike Volksplanters." Koers, vol. 24, no. 6, 1957, pp. 240-245, https://doi.org/10.4102/koers.v24i6.1842.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.
