APA Баримт

Obee B & V. Evans. (2003). Upstream: Upper intermediate B 2+,Student's book. Наука.

Чикаго маягийн жагсаалт

Obee B ба V. Evans. Upstream: Upper Intermediate B 2+,Student's Book. Express publishing: Наука, 2003.

MLA ишлэл

Obee B ба V. Evans. Upstream: Upper Intermediate B 2+,Student's Book. Наука, 2003.