Cita APA (7th ed.)

Dyson, P., Morris, R., & Holman, R. (1997). Dietary intake screening by means of a food-frequency questionnaire.

Cita Chicago (17th ed.)

Dyson, P., R. Morris, i R. Holman. Dietary Intake Screening by Means of a Food-frequency Questionnaire. 1997.

Cita MLA (9th ed.)

Dyson, P., et al. Dietary Intake Screening by Means of a Food-frequency Questionnaire. 1997.