APA (7th ed.) Citation

Williams, J., & Harland, J. (1992). Katak. Penerbit Pan Earth Sdn. Bhd..

Chicago Style (17th ed.) Citation

Williams, John, and Jackie Harland. Katak. Petaling Jaya: Penerbit Pan Earth Sdn. Bhd., 1992.

MLA (9th ed.) Citation

Williams, John, and Jackie Harland. Katak. Penerbit Pan Earth Sdn. Bhd., 1992.

Warning: These citations may not always be 100% accurate.