APA (7th ed.) Citation

Roekaerts, E. (1971). A survey on the medical infrastructure and medical care in Northern Luzon. [publisher not identified].

Chicago Style (17th ed.) Citation

Roekaerts, Emiel. A Survey on the Medical Infrastructure and Medical Care in Northern Luzon. [Place of publication not identified]: [publisher not identified], 1971.

MLA (9th ed.) Citation

Roekaerts, Emiel. A Survey on the Medical Infrastructure and Medical Care in Northern Luzon. [publisher not identified], 1971.