APA-ийн эшлэл(7 дахь хэвлэлт)

(1990). Head Start: Issues for the second quarter century : hearing before the Committee on Labor and Human Resources, United States Senate, One Hundred First Congress, second session ... April 17, 1990, Boston, MA.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Head Start: Issues for the Second Quarter Century : Hearing Before the Committee on Labor and Human Resources, United States Senate, One Hundred First Congress, Second Session ... April 17, 1990, Boston, MA. 1990.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Head Start: Issues for the Second Quarter Century : Hearing Before the Committee on Labor and Human Resources, United States Senate, One Hundred First Congress, Second Session ... April 17, 1990, Boston, MA. 1990.