机读格式显示(MARC)

• 000 00694cas a2200193 4500

• 001 0000158581

• 005 20200828084100.0

• 008 060925s1981 caua bf 00110 eng

• 022 0_ |a 0027-8424 |z 0744-2831 |z 0273-1134 |z 0273-1142

• 040 __ |c PUL

• 090 __ |a (E)/N0/9

• 093 __ |a (E) |2 5

• 099 __ |a CAL 121999001006

• 222 _0 |a Proceedings of the National Academy of Sciences of the United States of America

• 245 10 |a Proceedings of the National Academy of Sciences of the United States of America.

• 246 1_ |i Vols. for <1999-> also called: |a PNAS

• 260 __ |a Washington, D.C. : |b The Academy, |c 1998

• 300 __ |a 4789-5420 p. : |b ill. ; |c 26-31 cm.

• 710 2_ |a National Academy of Sciences (U.S.)