APA aipamena

LONGMAN ORIENT. (1988). BASIC TOOLS. ORIENT LONGMAN.

Chicago Style aipamena

LONGMAN ORIENT. BASIC TOOLS. LUCKNOW: ORIENT LONGMAN, 1988.

MLA aipamena

LONGMAN ORIENT. BASIC TOOLS. ORIENT LONGMAN, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.