Watts, L. M. (1989). Development of a food-frequency questionnaire that assesses the dietary intake of school children in grade 4. [publisher not identified].
Chicago Style (17th ed.) CitationWatts, Linda Marion. Development of a Food-frequency Questionnaire That Assesses the Dietary Intake of School Children in Grade 4. [Place of publication not identified]: [publisher not identified], 1989.
MLA (9th ed.) CitationWatts, Linda Marion. Development of a Food-frequency Questionnaire That Assesses the Dietary Intake of School Children in Grade 4. [publisher not identified], 1989.
Warning: These citations may not always be 100% accurate.