Citazione Stile APA (7a Edizione)

Simanungkalit, A. (1971). A proposed syllabus for a modern mathematics content course for teacher training schools of Indonesia. s.n.].

Citazione stile Chigago Style (17a edizione)

Simanungkalit, Alfred. A Proposed Syllabus for a Modern Mathematics Content Course for Teacher Training Schools of Indonesia. [Quezon City: s.n.], 1971.

Citatione MLA (9a ed.)

Simanungkalit, Alfred. A Proposed Syllabus for a Modern Mathematics Content Course for Teacher Training Schools of Indonesia. s.n.], 1971.