UNITED NATIONS, N.Y., June 9,-The head of the United Nations Children's Fund is making a worldwide plea for immediate assistance to refugees from East Pakistan. The appeal by Henry R. Labouisse, UNICEF director, if twofold: for continued emergency aid such as drugs and foodstuffs now being supplied by UNICEF and for long- term assistance for the two million children living in the crowded refugee camps in northeastern India.

At least $5-million will be needed initially for this program, Mr. Labouisse advised the UNICEF committees in 27 countries. These committees raise funds from individuals, organizations and other non-governmental sources.

Secretary General Thant's May 19 upped to governments has brought contributions or pledges of $32-million.