APA (7th ed.) Citation

Hakkinen, V. (1972). EEG vigilance measurement and loudness discrimination in humans during drowsy states. Univ. of Helsinki.

Chicago Style (17th ed.) Citation

Hakkinen, Veikko. EEG Vigilance Measurement and Loudness Discrimination in Humans During Drowsy States. Helsinki: Univ. of Helsinki, 1972.

MLA (8th ed.) Citation

Hakkinen, Veikko. EEG Vigilance Measurement and Loudness Discrimination in Humans During Drowsy States. Univ. of Helsinki, 1972.

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