Frey, J. C. (1960). Planned versus unregulated development in a suburban community. Dept. of Agricultural Economics and Rural Sociology, Agricultural Experiment Station, Pennsylvania State University.
Чикаго стиль цитування (17-те видання)Frey, John C. Planned Versus Unregulated Development in a Suburban Community. [University Park]: Dept. of Agricultural Economics and Rural Sociology, Agricultural Experiment Station, Pennsylvania State University, 1960.
Стиль цитування MLA (8-ме видання)Frey, John C. Planned Versus Unregulated Development in a Suburban Community. Dept. of Agricultural Economics and Rural Sociology, Agricultural Experiment Station, Pennsylvania State University, 1960.
Попередження: стилі цитування не завжди правильні на всі 100%.