Sentences with finite models.

MLA

Ash, C. J. “Sentences with Finite Models.” Mathematical Logic Quarterly, vol. 21, no. 1, Jan. 1975, pp. 401–04. EBSCOhost, https://doi.org/10.1002/malq.19750210153.

APA

Ash, C. J. (1975). Sentences with finite models. Mathematical Logic Quarterly, 21(1), 401–404. https://doi.org/10.1002/malq.19750210153

Chicago

Ash, C. J. 1975. “Sentences with Finite Models.” Mathematical Logic Quarterly 21 (1): 401–4. doi:10.1002/malq.19750210153.