Gaya APA

Let's Be Friends Grade 1.2 / Houghton Mifflin. (2008). U.S.A :: Houghton Mifflin Harcourt Publishing Company,.

Gaya MLA

Let's Be Friends Grade 1.2 / Houghton Mifflin. 1. U.S.A :: Houghton Mifflin Harcourt Publishing Company,, 2008. Text.