APA (7th ed.) Citation

EPSTEIN, G. L., & CLARK, W. C. (1990). Two plus two. Science (pre-March 2025), 248(4960), 1174.

Chicago Style (17th ed.) Citation

EPSTEIN, GERALD L., and WILLIAM C. CLARK. "Two Plus Two." Science (pre-March 2025) 248, no. 4960 (1990): 1174.

MLA (9th ed.) Citation

EPSTEIN, GERALD L., and WILLIAM C. CLARK. "Two Plus Two." Science (pre-March 2025), vol. 248, no. 4960, 1990, p. 1174.

Warning: These citations may not always be 100% accurate.