APA

Carnegie D., . (1998). How to develop self-confidence and influence people by public speaking. London: Vermilion.

Chicago

Carnegie Dale, . 1998. How to develop self-confidence and influence people by public speaking. London: Vermilion.

Harvard

Carnegie D., . (1998). How to develop self-confidence and influence people by public speaking. London: Vermilion.

MLA

Carnegie Dale, . How to develop self-confidence and influence people by public speaking. London: Vermilion. 1998.