Gaya APA
Leedy, Paul D. (1974).
Practical research : planning and design .
New York:
Palgrave Macmillan.
Gaya Chicago
Leedy, Paul D.
Practical research : planning and design.
New York:
Palgrave Macmillan,
1974.
Text.
Gaya MLA
Leedy, Paul D.
Practical research : planning and design.
New York:
Palgrave Macmillan,
1974.
Text.
Gaya Turabian
Leedy, Paul D.
Practical research : planning and design.
New York:
Palgrave Macmillan,
1974.
Print.