Pytel, A. (1994). Student study guide to accompany engineering mechanics: Statics. New York: HarperCollins College Publishers.
Trích dẫn kiểu ChicagoPytel, Andrew. Student Study Guide to Accompany Engineering Mechanics: Statics. New York: HarperCollins College Publishers, 1994.
Trích dẫn MLAPytel, Andrew. Student Study Guide to Accompany Engineering Mechanics: Statics. New York: HarperCollins College Publishers, 1994.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.