Παραπομπή APA

Strong, A. L. (1965). Open space through water resource protection: An approach applied to the Philadelphia Metropolitan Area. Philadelphia: Institute for Environmental Studies.

Παραπομπή Chicago Style

Strong, Ann Louise. Open Space Through Water Resource Protection: An Approach Applied to the Philadelphia Metropolitan Area. Philadelphia: Institute for Environmental Studies, 1965.

Παραπομπή MLA

Strong, Ann Louise. Open Space Through Water Resource Protection: An Approach Applied to the Philadelphia Metropolitan Area. Philadelphia: Institute for Environmental Studies, 1965.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.