A Query Where Two Tables Are Linked To The Same Another Table

Hello,

I'm not an expert in SQL, if you could help me for that little
problem:

I had tree simple tables with their fields:
[Client] IdClient, Param
[Sale] IdSale, IdClient, Param
[Param] IdParam, Value

How can I retrieve a recordset with this columns ?
IdClient, IdSale, ValueOfParamClient, ValueOfParamSale

The problem is that I can retrieve a Param for one table (Client or
Sale) like this request :

SELECT Client.IdClient, Sale.IdSale, Param.Value
FROM
(Client
INNER JOIN Sale
ON Sale.IdClient = Client.IdClient)
LEFT JOIN Param
ON Param.IdParam = Sale.Param

But how can I retrieve the Param of the another table in a simple
query ? (because I would also like that it works for access)

Thank for your help,

Marc