(1922). Les lois minières de l'Etat de Pensylvanie. International Labour Organization.
Chicago Style (17th ed.) CitationLes Lois Minières De L'Etat De Pensylvanie. International Labour Organization, 1922.
MLA (9th ed.) CitationLes Lois Minières De L'Etat De Pensylvanie. International Labour Organization, 1922.
Warning: These citations may not always be 100% accurate.