FitzSimons, D. W. (1978). Points from letters: SI, moles, and drugs.
Chicago Style aipamenaFitzSimons, D W. Points From Letters: SI, Moles, and Drugs. 1978.
MLA aipamenaFitzSimons, D W. Points From Letters: SI, Moles, and Drugs. 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.