Houghton Mifflin Company. (2002). Houghton Mifflin mathematics. Houghton Mifflin.
Chicago Style (17th ed.) CitationHoughton Mifflin Company. Houghton Mifflin Mathematics. Boston: Houghton Mifflin, 2002.
MLA citiranjeHoughton Mifflin Company. Houghton Mifflin Mathematics. Houghton Mifflin, 2002.
Opozorilo: Ti citati niso vedno 100% točni.