KONCELIK, J. A. (1982). Aging and the product environment ed. 1. Huchinson Ross.
Chicago Style aipamenaKONCELIK, Joseph A. Aging and the Product Environment Ed. 1. Struodsburg: Huchinson Ross, 1982.
MLA aipamenaKONCELIK, Joseph A. Aging and the Product Environment Ed. 1. Huchinson Ross, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.