APA (7th ed.) Citation

Regional Planning Federation of the Philadelphia Tri-State District. (1932). --abstract of chapter IX.

Chicago Style (17th ed.) Citation

Regional Planning Federation of the Philadelphia Tri-State District. --abstract of Chapter IX. Philadelphia, 1932.

MLA (9th ed.) Citation

Regional Planning Federation of the Philadelphia Tri-State District. --abstract of Chapter IX. 1932.

Warning: These citations may not always be 100% accurate.