Darracott, C. R. (1991). Ratings of perceived exertion as a determinant of physical activity in 9 to 11 year-old children. [publisher not identified].
Chicago Style (17th ed.) CitationDarracott, Charles Risdon. Ratings of Perceived Exertion as a Determinant of Physical Activity in 9 to 11 Year-old Children. [Place of publication not identified]: [publisher not identified], 1991.
MLA (9th ed.) CitationDarracott, Charles Risdon. Ratings of Perceived Exertion as a Determinant of Physical Activity in 9 to 11 Year-old Children. [publisher not identified], 1991.
Warning: These citations may not always be 100% accurate.