how to get all of the customer's addressbook

how to get all of the  customer's addressbook
I search  a list of customers  these  values 

customer.internalId, customer.entityId, customer.companyName, customer.entityStatus.name, customer.email, customer.phone, Convert.ToString(customer.isInactive), customer.dateCreated.ToShortDateString()
is  sucess!!!!
but when i use :
customer.addressbookList.addressbook[1].addr1

to get the addressbook  I receive the error！！！

error:

System.NullReferenceException: 未将对象引用设置到对象的实例


help me   how can I get all of the addressbook

i can't also set the bodyFieldsOnly too...  how??

thanks very much

the guide show me that:

Important: When performing searches on records, by default only the body fields are returned. To
return field values for all lists on a record, you must set the bodyFieldsOnly element of the