APA aipamena

North, N. L., & Ring, A. A. (1960). Real estate principles and practices. Prentice-Hall.

Chicago Style aipamena

North, Nelson Luther, and Alfred A. Ring. Real Estate Principles and Practices. Englewood, N. J: Prentice-Hall, 1960.

MLA aipamena

North, Nelson Luther, and Alfred A. Ring. Real Estate Principles and Practices. Prentice-Hall, 1960.