APA (7 ম সংস্করণ) উদ্ধৃতি

National Development Group for Educational Innovation & Sumagaysay, L. S. (1980). In-service education for primary teachers: Design formulation. National Development Group for Educational Innovation.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

National Development Group for Educational Innovation এবং Lourdes S. Sumagaysay. In-service Education for Primary Teachers: Design Formulation. Manila: National Development Group for Educational Innovation, 1980.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

National Development Group for Educational Innovation এবং Lourdes S. Sumagaysay. In-service Education for Primary Teachers: Design Formulation. National Development Group for Educational Innovation, 1980.