APA citiranje

OECD. (1976). Regional problems and policies in OECD countries. Paris: Organization for economic co-operation and development.

Trích dẫn kiểu Chicago

OECD. Regional Problems and Policies in OECD Countries. Paris: Organization for economic co-operation and development, 1976.

MLA citiranje

OECD. Regional Problems and Policies in OECD Countries. Paris: Organization for economic co-operation and development, 1976.