Gaya APA
Clarke, D, H., Clarke, H, H. (1984).
Research processes in physical education (2nd ed.).
Englewood, Cliffs:
Prentice-Hall.
Gaya MLA
Clarke, David, H.., Clarke, H., Harrison.
"Research processes in physical education".
2nd ed.
Englewood, Cliffs:
Prentice-Hall,
1984.
Text.