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• 000 00633cam a2200217 a 4500

• 001 0000324156

• 005 20191002121100.0

• 008 061108s1949 enka b 001 0 eng d

• 010 __ |a 49027678

• 020 __ |c CNY1.40

• 040 __ |a SJT |c SJT |d SJT

• 090 __ |a TV7/GG

• 093 __ |a TV7 |2 5

• 099 __ |a CAL 022006123333

• 100 1_ |a Gerard, Geoffrey.

• 245 10 |a Hydro-electric engineering / |c by Geoffrey Gerard.

• 260 __ |a London : |b Sir Isaac Pitman & Sons, Ltd., |c 1949.

• 300 __ |a x, 181 p. : |b ill. ; |c 23 cm.

• 504 __ |a Includes bibliographical references and index.

• 650 _0 |a Hydroelectric power plants.

• 920 __ |a 211180 |z 1