Johnson, D. E. 1. S. 2. (2021). Residential land development practices: A textbook on developing land into finished lots (Fourth edition.). American Society of Civil Engineers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Johnson, David E. 1950 September 28-. Residential Land Development Practices: A Textbook on Developing Land into Finished Lots. Fourth edition. Reston, Virginia: American Society of Civil Engineers, 2021.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Johnson, David E. 1950 September 28-. Residential Land Development Practices: A Textbook on Developing Land into Finished Lots. Fourth edition. American Society of Civil Engineers, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.