Lua APA (7ú heag.)

Hakala, M. (1986). Pulmonary manifestations of rheumatoid arthritis: A clinical, immunogenetic, and histological study. University of Oulu.

Lua i Stíl Chicago (17ú heag.)

Hakala, Markku. Pulmonary Manifestations of Rheumatoid Arthritis: A Clinical, Immunogenetic, and Histological Study. Oulu: University of Oulu, 1986.

Lua MLA (8ú heag.)

Hakala, Markku. Pulmonary Manifestations of Rheumatoid Arthritis: A Clinical, Immunogenetic, and Histological Study. University of Oulu, 1986.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.