APA-viite (7. p.)

ALEXANDER. Practice And Progress New Concept English An Integrated Course For Pre-intermediate Atudent Vol 1 Alexander. s.n.

Chicago-viite (17. p.)

ALEXANDER. Practice And Progress New Concept English An Integrated Course For Pre-intermediate Atudent Vol 1 Alexander. s.n.

MLA-viite (8. p.)

ALEXANDER. Practice And Progress New Concept English An Integrated Course For Pre-intermediate Atudent Vol 1 Alexander. s.n.

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