APA (7th ed.) Citation

Pedro Retamal C. & Derek Humphreys. Occurrence of suicide and seasonal variation. Universidade de São Paulo.

Chicago Style (17th ed.) Citation

Pedro Retamal C. and Derek Humphreys. Occurrence of Suicide and Seasonal Variation. Universidade de São Paulo.

MLA (9th ed.) Citation

Pedro Retamal C. and Derek Humphreys. Occurrence of Suicide and Seasonal Variation. Universidade de São Paulo.

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