APA引文

Sheehan, D. (1981). Shut up and sell: Tested techniques for closing the sale / Don Sheehan ; foreword by Norman Vincent Peale. National Book Store.

Chicago Style (17th ed.) Citation

Sheehan, Don. Shut Up and Sell: Tested Techniques for Closing the Sale / Don Sheehan ; Foreword by Norman Vincent Peale. [Manila]: National Book Store, 1981.

MLA引文

Sheehan, Don. Shut Up and Sell: Tested Techniques for Closing the Sale / Don Sheehan ; Foreword by Norman Vincent Peale. National Book Store, 1981.