Garner, Bryan A.. "The Question Mark". The Chicago Guide to Grammar, Usage, and Punctuation, Chicago: University of Chicago Press, 2016, pp. 386-386. https://doi.org/10.7208/9780226191294-101
Garner, B. (2016). The Question Mark. In The Chicago Guide to Grammar, Usage, and Punctuation (pp. 386-386). Chicago: University of Chicago Press. https://doi.org/10.7208/9780226191294-101
Garner, B. 2016. The Question Mark. The Chicago Guide to Grammar, Usage, and Punctuation. Chicago: University of Chicago Press, pp. 386-386. https://doi.org/10.7208/9780226191294-101
Garner, Bryan A.. "The Question Mark" In The Chicago Guide to Grammar, Usage, and Punctuation, 386-386. Chicago: University of Chicago Press, 2016. https://doi.org/10.7208/9780226191294-101
Garner B. The Question Mark. In: The Chicago Guide to Grammar, Usage, and Punctuation. Chicago: University of Chicago Press; 2016. p.386-386. https://doi.org/10.7208/9780226191294-101