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The procedure for installing a particular version of PostgreSQL depends on the operating system being used. Here are the general steps for some commonly used operating systems:

Linux:

1. Identify the version of PostgreSQL to be installed and download the appropriate package from the PostgreSQL website.
2. Open a terminal window and navigate to the directory where the downloaded package is located.
3. Run the command to install the package using the appropriate package manager, such as yum or apt-get.

macOS:

1. Download the PostgreSQL package for macOS from the PostgreSQL website.
2. Open the downloaded package and follow the on-screen instructions to install PostgreSQL.

Windows:

1. Download the PostgreSQL installer for Windows from the PostgreSQL website.
2. Run the downloaded installer and follow the on-screen instructions to install PostgreSQL.

In all cases, it is important to follow the instructions carefully and make sure that any prerequisites or dependencies for the chosen version of PostgreSQL are installed before proceeding with the installation.