APA (7th ed.) Zitazioa
Little, P. E. (1970). Paul little's what and why book. World wide.
Chicago Style (17th ed.) Zitazioa
Little, Paul E. Paul Little's What and Why Book. MInneapolis: World wide, 1970.
MLA (9th ed.) Zitazioa
Little, Paul E. Paul Little's What and Why Book. World wide, 1970.
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