APA (7th ed.) Citation

Tho Lai Hoong & Ho Peck Leng. (2004). i-Science primary 4. SNP Panpac Pte Ltd.

Chicago Style (17th ed.) Citation

Tho Lai Hoong and Ho Peck Leng. I-Science Primary 4. Singapore: SNP Panpac Pte Ltd, 2004.

MLA (9th ed.) Citation

Tho Lai Hoong and Ho Peck Leng. I-Science Primary 4. SNP Panpac Pte Ltd, 2004.