Progress of Indonesian swiftlet are surprising

2009/12

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-

Provisional determination of material in six swiflet nests from Sarawak

1957

Johnson

Pupol:1957 auctions

1958

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-

Recommendations for management of birds'-nest caves, Baram, Sarawak

1957/05/24

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-

Record of "white" edible birds' nest auctions at Long Lama from 1933 to 1936

1958

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-

Record of birds' nest auctions at Long Lama since 1948

1958

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-

Reference to Collocalia

1986

Relative humidity tables (dry bulb, wet bulb)

1957

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-

Report of the birds' nest industry of North Borneo with special reference to Gomantong Cave

1930

Chasen, F. N.

Report on a short visit to Niah Cave, Sarawak

1988

Cranbrook, Gathorne Gathorne-Hardy, Earl of, 1933-