(1977). Report 75/76. Division of Library Development and Services, Maryland State Department of Education, Baltimore, Maryland.
Citazione stile Chigago Style (17a edizione)Report 75/76. Division of Library Development and Services, Maryland State Department of Education, Baltimore, Maryland. 1977.
Citatione MLA (9a ed.)Report 75/76. Division of Library Development and Services, Maryland State Department of Education, Baltimore, Maryland. 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.