APA (7th ed.) Citation

Knopman, D. S. (1975). Conservation of stone artworks. Science, 190, 1187.

Chicago Style (17th ed.) Citation

Knopman, D. S. "Conservation of Stone Artworks." Science 190 (1975): 1187.

MLA (9th ed.) Citation

Knopman, D. S. "Conservation of Stone Artworks." Science, vol. 190, 1975, p. 1187.

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