APA (7th ed.) Citation

Catalan, M. H. D., & De Pio, S. A. S. (2014). A turtle tale (50th anniversary edition.). University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED).

Chicago Style (17th ed.) Citation

Catalan, Maria Helen D., and Simkin Angelo S. De Pio. A Turtle Tale. 50th anniversary edition. Quezon City: University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED), 2014.

MLA (9th ed.) Citation

Catalan, Maria Helen D., and Simkin Angelo S. De Pio. A Turtle Tale. 50th anniversary edition. University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED), 2014.