Review the entry from a works-cited page: Nordhaus, William D. "After Kyoto: Alternative Mechanisms to Control Global Warming." American Economic Review, vol. 96, no. 2, 2006, pp. 31-34.

Which choice correctly formats the in-text citation for this source?

1) (William Nordhaus, 33).

2) (Nordhaus 33).

3) (American Economic 33).

4) ("After Kyoto," 33).