Question 1: Chess moves; Question 2: Cat litter.

MLA

Weinstein, Larry. “Question 1: Chess Moves; Question 2: Cat Litter.” Physics Teacher, vol. 59, no. 8, Aug. 2021, p. 669. EBSCOhost, https://doi.org/10.1119/10.0006930.

APA

Weinstein, L. (2021). Question 1: Chess moves; Question 2: Cat litter. Physics Teacher, 59(8), 669. https://doi.org/10.1119/10.0006930

Chicago

Weinstein, Larry. 2021. “Question 1: Chess Moves; Question 2: Cat Litter.” Physics Teacher 59 (8): 669. doi:10.1119/10.0006930.