Linguistic Society of the Philippines. (1971). 50 most frequently asked questions about the national language. s.n.].
Citazione stile Chigago Style (17a edizione)Linguistic Society of the Philippines. 50 Most Frequently Asked Questions About the National Language. [Quezon City: s.n.], 1971.
Citatione MLA (9a ed.)Linguistic Society of the Philippines. 50 Most Frequently Asked Questions About the National Language. s.n.], 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.