(2004). Peak performers: How to get the best from tourself, your co-workers and your staff.
Trích dẫn kiểu ChicagoPeak Performers: How to Get the Best from Tourself, Your Co-workers and Your Staff. Mumbai, Jaico Publishing House, 2004.
Trích dẫn MLAPeak Performers: How to Get the Best from Tourself, Your Co-workers and Your Staff. 2004.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.