APA aipamena

Tay, B. (2007). Biology InsightsO LevelBeverly Tay. Pearson Longman.

Chicago Style aipamena

Tay, Beverly. Biology InsightsO LevelBeverly Tay. Pearson Longman, 2007.

MLA aipamena

Tay, Beverly. Biology InsightsO LevelBeverly Tay. Pearson Longman, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.