Nancy Field has written:
'Discovering Volcanoes (Discovery Library)'
'Discovering Marine Mammals (Discovering Nature)'
'Discovery book for the Seattle Aquarium' -- subject(s):
Juvenile literature, Marine biology, Marine ecology
'Discovering sharks and rays' -- subject(s): Juvenile
literature, Rays (Fishes), Sharks
'Discovering Mount Rainier' -- subject(s): Juvenile literature,
Mountain ecology