Law, W. (1971). A serious call to a devout and holy life. Sovereign Publishers.
Lua i Stíl Chicago (17ú heag.)Law, William. A Serious Call to a Devout and Holy Life. Grand Rapids: Sovereign Publishers, 1971.
Lua MLA (9ú heag.)Law, William. A Serious Call to a Devout and Holy Life. Sovereign Publishers, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.