APA

Beck J. W., Richards D. A., Edwards R. L., Silverman B. W., Smart P. L., Donahue D. J., Hererra-Osterheld S., Burr G. S., Calsoyas L., Jull A. J. & Biddulph D. (20010712). Extremely large variations of atmospheric 14C concentration during the last glacial period. : Science (New York, N.Y.).

Chicago

Beck J W, Richards D A, Edwards R L, Silverman B W, Smart P L, Donahue D J, Hererra-Osterheld S, Burr G S, Calsoyas L, Jull A J and Biddulph D. 20010712. Extremely large variations of atmospheric 14C concentration during the last glacial period. : Science (New York, N.Y.).

Harvard

Beck J. W., Richards D. A., Edwards R. L., Silverman B. W., Smart P. L., Donahue D. J., Hererra-Osterheld S., Burr G. S., Calsoyas L., Jull A. J. and Biddulph D. (20010712). Extremely large variations of atmospheric 14C concentration during the last glacial period. : Science (New York, N.Y.).

MLA

Beck J W, Richards D A, Edwards R L, Silverman B W, Smart P L, Donahue D J, Hererra-Osterheld S, Burr G S, Calsoyas L, Jull A J and Biddulph D. Extremely large variations of atmospheric 14C concentration during the last glacial period. : Science (New York, N.Y.). 20010712.