Lancaster, P. R., & Mitchell, D. (1977). Mechanical science III. Macmillan.
Lua i Stíl Chicago (17ú heag.)Lancaster, Philip Roy, agus D. Mitchell. Mechanical Science III. London: Macmillan, 1977.
Lua MLA (9ú heag.)Lancaster, Philip Roy, agus D. Mitchell. Mechanical Science III. Macmillan, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.