APA
(1988). Research abstracts : South-East Asia region. World Health Organisation, New Delhi: .
Chicago
1988. Research abstracts : South-East Asia region. World Health Organisation, New Delhi: .
Harvard
(1988). Research abstracts : South-East Asia region. World Health Organisation, New Delhi: .
MLA
Research abstracts : South-East Asia region. World Health Organisation, New Delhi: . 1988.