Relative Hardness as a Measure of Aromaticity.

MLA

De Proft, F., and P. Geerlings. “Relative Hardness as a Measure of Aromaticity.” ChemInform, vol. 35, no. 16, Apr. 2004, p. no. EBSCOhost, https://doi.org/10.1002/chin.200416282.

APA

De Proft, F., & Geerlings, P. (2004). Relative Hardness as a Measure of Aromaticity. ChemInform, 35(16), no. https://doi.org/10.1002/chin.200416282

Chicago

De Proft, F., and P. Geerlings. 2004. “Relative Hardness as a Measure of Aromaticity.” ChemInform 35 (16): no. doi:10.1002/chin.200416282.