机读格式显示(MARC)

• 000 00829pam a2200253 i 4500

• 001 0000398829

• 005 20140723140800.0

• 008 771003s1978 nyua j 001 0 eng

• 020 __ |a 0531014045

• 040 __ |a ZKSY |c ZKSY

• 090 __ |a TK019/W1

• 093 __ |a TK019 |2 5

• 100 1_ |a Watson, Jane Werner, |d 1915-

• 245 10 |a Conservation of energy : |c Jane Werner Watson.

• 260 __ |a New York : |b F. Watts, |c 1978.

• 300 __ |a 64 p. : |b ill. ; |c 23 cm.

• 490 0_ |a A First book

• 500 __ |a Includes index.

• 520 __ |a Explains the pros and cons of various fuels and energy sources and discusses why we must and how we can conserve energy.

• 650 _0 |a Energy conservation |x Juvenile literature.

• 650 _0 |a Fossil fuels |x Juvenile literature.

• 650 _1 |a Energy conservation.

• 650 _1 |a Power resources.

• 920 __ |a 241200 |z 2