APA引文

Schuller ,Robert H. (1988). Tough Times Never Last But Tough People Do. Orient Paperbacks.

Chicago Edition Citation

Schuller ,Robert H. Tough Times Never Last But Tough People Do. Delhi: Orient Paperbacks, 1988.

MLA引文

Schuller ,Robert H. Tough Times Never Last But Tough People Do. Orient Paperbacks, 1988.

警告：這些引文格式不一定是100％准確.