How can I get Contacts from my list of Accounts? C# API

How can I get Contacts from my list of Accounts? C# API

Hi everyone,

I have a question about how to get all Contacts of the special Account. The problem is that I can get all Accounts from CRM and their properties, but in those properties, I can not see anything related to the Contact. 

How can I find them? 

Edit:
Is a more simple question: How to get Contacts of Accounts?

What I'm thinking is that I can JOIN those two tables. Accounts and Contacts, but I don't know how to do it.

I found this page, but it's still not helping me:
https://www.zoho.com/crm/developer/docs/csharp-sdk/v2/custom-view-samples.html?src=get_cust_views


Best regards,
Vladimir