APA (7th ed.) Citation

Humphreys, S., Fisher, R., & Frayn, K. (1990). Micro-method for measurement of sub-nanomole amounts of triacylglycerol.

Chicago Style (17th ed.) Citation

Humphreys, S., R. Fisher, and K. Frayn. Micro-method for Measurement of Sub-nanomole Amounts of Triacylglycerol. 1990.

MLA (9th ed.) Citation

Humphreys, S., et al. Micro-method for Measurement of Sub-nanomole Amounts of Triacylglycerol. 1990.