Question

select the volume number and issue number in this works cited entry.
pogue, david. \technofiles.\ scientific american, vol. 312, no. 4, 2015, p. 35.
submit

Explanation:

In the Works Cited entry "Pogue, David. 'TechnoFiles.' Scientific American, vol. 312, no. 4, 2015, p. 35", the "vol." (volume) is followed by 312 and "no." (number, referring to issue number) is followed by 4. So we extract these values as the volume and issue numbers.

Answer:

Volume number: 312, Issue number: 4